Geography Geography 5 min read

Unparalleled sights

Have you ever seen these geological oddities found only in the US?

Image: Steve Wrzeszczynski

Hot springs painted like rainbows, diamond-handpicking lands, and a mysterious disappearing waterfall—these are some of the unique geological spots you can find only in the U.S. Surreal rock and mineral formations, like the Petrified Forest or the Fly Ranch Geyser, have acquired their vibrant colors over decades or even millennia and are still there, waiting to be marveled at by hikers and visitors. Have you ever seen or read about these one-of-a-kind marvels? Let’s dive into how they came to be!

1
Grand Prismatic Spring

Image: MikeGoad

The steaming, multicolored circle of the Grand Prismatic Spring is one of the most hypnotic and unique sights in the U.S. Part of Yellowstone National Park, this hot spring is the largest in the country and the third-largest in the world, measuring 370 feet wide and 160 feet deep.

Its vibrant colors, ranging from deep blue in the center to fiery red and orange at its edges, are unlike anything we see in nature every day. Minerals and microbes are responsible for these hues, with water temperature causing the pigments to fluctuate . The spring owes its existence to geothermal activity driven by Yellowstone's underlying magma chamber and is located in the Midway Geyser Basin.

2
Fly Ranch Geyser

Image: Ken Lund, CC BY-SA 2.0

One of the reasons why Fly Ranch Geyser is unique in the world is that it was formed after a human accident . This technicolor geothermal geyser, located on the Fly Ranch property in the Hualapai Geothermal Flats of Washoe County, Nevada, wasn’t there before 1916.

In 1916, while drilling a well for irrigation in the area, workers struck near-boiling geothermal water, leading to the creation of the first geyser. Decades later, in 1964, a geothermal energy company drilled a second well nearby, which caused the emergence of the Fly Geyser we know today. It has been spouting water into the sky ever since, forming several cone-like vents atop a mound that continues to grow.

3
Devil’s Kettle

Image: chrishawaii

Where does the water from the Brule River go when it falls? For a long time, this was a mystery. Located in Judge C.R. Magney State Park near Grand Marais, Minnesota, along the North Shore of Lake Superior, the river is famous for its unusual split: one half flows downstream, while the other plunges into a seemingly bottomless hole .

This waterfall has baffled visitors and scientists for years because objects thrown into the "kettle," such as logs and ping-pong balls, appeared to vanish without resurfacing. This fueled theories of underground rivers or deep caverns beneath the falls. The mystery was solved recently when hydrologists discovered that the water entering the kettle resurfaces downstream . The kettle's strong currents explain why objects thrown in don’t resurface; they are broken apart and held underwater, functioning like a natural washing machine.

4
Mono Lake Tufa Towers

Image: Stephen Leonardi

These unique limestone formations, known as the Mono Lake Tufa Towers, emerge from the salty, alkaline waters of Mono Lake , fed by underwater springs. Located in eastern California, near the Sierra Nevada mountains and about 13 miles east of Yosemite National Park, they are a striking natural wonder.

These tufa towers rise dramatically from the water. How were they formed? Mono Lake has no outlet, so its high alkalinity and salinity caused minerals to accumulate over time. This unique environment supports an ecosystem of brine shrimp, alkali flies, and migratory birds. To give you an idea, the lake’s salinity is more than twice that of the ocean, which means you could float effortlessly in its waters, as many visitors do.

5
Crater of Diamonds

Image: Brett Sayles

If you find a diamond here, you get to keep it—this is the only diamond-bearing site in the world where that's possible. Open to the public for mining , the Crater of Diamonds is a 37.5-acre field located near Murfreesboro, Arkansas. It marks the eroded surface of a volcanic pipe composed of lamproite, a rare volcanic rock.

Visitors sometimes find diamonds of various colors, including white, yellow, and brown, along with other gems like amethyst and garnet. It was here that the "Uncle Sam Diamond" was found, the largest diamond ever dug out in North America, weighing 40.23 carats. Diamonds were first discovered here in 1906 when a local farmer found unusual crystals on his land, which sparked a minor diamond rush.

6
Antelope Canyon

Image: Roberto Lee Cortes

Rocks that look like flowing water: Antelope Canyon is a famous and breathtaking slot canyon in northern Arizona. It consists of two main sections: Upper Antelope Canyon (a.k.a. Tsé bighánílíní, or "the place where water runs through rocks") and Lower Antelope Canyon ( Hazdistazí, or "spiral rock arches").

The canyon was formed over millions of years as flash floods and desert winds eroded the Navajo Sandstone. Even today, seasonal flash flooding continues to shape and carve the canyon’s mesmerizing features. Its surreal, wave-like formations in shades of orange are a favorite subject for photographers and tourists from all over the world.

7
Petrified Forest

Image: Megan Clark

The Petrified Forest National Park in northeastern Arizona boasts one of the world's largest and most vibrant concentrations of petrified wood . The park, part of the Painted Desert, is located between the Apache and Navajo Counties.

Most of the wood found there is from ancient conifer trees that date back about 225 million years to the Late Triassic period. These trees were swept into river systems, buried by sediment, and transformed into stone through a process called permineralization . The park also features a wealth of fossilized remains of ancient animals, including early reptiles.

8
Devils Tower

Image: Kyle Petzer

The Devils Tower stands alone, protruding dramatically from the plains. Considered sacred by Native American tribes, it was originally called "bad god’s tower," a name that eventually evolved into its current form. Located in northeastern Wyoming, this igneous rock monolith soars 867 feet above its base.

It was designated the first U.S. National Monument by President Theodore Roosevelt in 1906. Geologists agree that Devils Tower was formed through the intrusion of magma into sedimentary rock layers about 50 to 60 million years ago. Today, climbers from around the world are drawn to its sheer walls, though climbing is prohibited in June to honor Native ceremonies.

9
The Wave

Image: Mark Nemenzo

The Wave is a visually stunning sandstone formation located in the Coyote Buttes North area of the Vermilion Cliffs National Monument. Known for its hypnotic, swirling bands of red, orange, and yellow, its delicate ridges are so easily damaged that even one misplaced footstep could ruin the beautiful patterns.

Approximately 185 million years ago, this area was a vast desert covered in dunes. Over time, layers of sand were deposited, compacted, and cemented, forming this Navajo sandstone shape. Unfortunately, The Wave is only accessible by a challenging hike that requires a permit, due to the fragility of its ecosystem and high demand from visitors. With less than 5% of applicants obtaining a permit each year, it is one of the most exclusive hiking destinations in the world.

10
Kasha-Katuwe Tent Rocks National Monument

Image: Bruce Warrington

The Kasha-Katuwe Tent Rocks National Monument, located in northern New Mexico, displays a unique landscape of tall, cone-shaped rock formations. These "tent rocks," composed of pumice and tuff, are known as "hoodoos." They are natural formations ranging from a few feet to approximately 90 feet tall.

The name "Kasha-Katuwe" means "white cliffs" in the Keresan language of the Cochiti Pueblo. Hiking trails, such as the Slot Canyon Trail, offer visitors the opportunity to explore the cones up close while walking through dramatic, narrow canyons.

General General 4 min read

Science usually starts as science fiction

Trip to Mars, anyone? Discover 10 American science fiction authors

Image: RDNE Stock project

It takes a special kind of talent to be a science fiction writer. Whether you are writing about a dystopian future or a utopian one, you are creating a new world with its own rules and systems to guide it. Long before Elon Musk started seriously considering a trip to Mars, science fiction authors were already exploring how this might turn out. Many writers have attempted this genre, but only a few have made a significant impact. The following ten belong to that prestigious group. If you haven’t read any of these authors, we encourage you to do so. Not only is it a lot of fun, but it also fuels your own imagination.

1
Ray Bradbury

Image: Rod Long

Perhaps the most emblematic name in American science fiction, Ray Bradbury was an author and screenwriter best known for his novel Fahrenheit 451 , and his short story collections The Martian Chronicles , and The Illustrated Man .

His works not only imagine what extraterrestrial colonies might be like but also explore how such experiences would affect humans on a deeply personal level. His prose is both poetic and informative, making it accessible to both young and adult readers alike.

2
Philip K. Dick

Image: Filip Filkovic Philatz

If you’ve ever seen the movie Blade Runner or the TV series The Man in the High Castle , then you’ve been exposed to the work of Philip K. Dick. This prolific novelist wrote numerous novels and short stories that explore philosophical and social questions such as the nature of reality, human nature, and characters struggling against illusory environments, monopolistic corporations, and authoritarian governments.

His novel Do Androids Dream of Electric Sheep? was the basis for Blade Runner and his works have earned him countless awards all over the world.

3
William Gibson

Image: Brian McGowan

The creator of the now-ubiquitous term "cyberspace," William Gibson was a speculative fiction writer whose works explore the effects of technology, cybernetics, and computer networks on humans (fans of Black Mirror will likely find this author to their liking).

His first novel, Neuromancer , was credited with revitalizing science fiction literature in the 1980s, and he was described in 1999 as "probably the most important novelist of the past two decades.

4
L. Ron Hubbard

Image: Luna Wang

"While he is now more famous for founding Scientology, L. Ron Hubbard was a genuine science fiction writer who authored works such as Battlefield Earth, To the Stars, Buckskin Brigades, and Death’s Deputy , among other titles.

Hubbard was quite a prolific pulp science fiction and fantasy writer in his early career and, in 1950, he published Dianetics: The Modern Science of Mental Health , establishing organizations to promote and practice Dianetics techniques.

5
Theodore Sturgeon

Image: Rod Long

A critic turned writer, Theodore Sturgeon wrote over 120 short stories, 11 novels, and even a handful of scripts for the original Star Trek television series. His first science fiction novel, More Than Human , won the 1954 International Fantasy Award for that year's best novel.

Though he was not as well known to the general public as contemporaries like Isaac Asimov or Ray Bradbury, Sturgeon gained recognition among readers of mid-20th-century science fiction anthologies. At the height of his popularity in the 1950s, he was the most anthologized English-language author alive.

6
Alfred Bester

Image: Steve Johnson

One of the few writers credited with inventing modern science fiction, according to one of his colleagues, Alfred Bester was an author, TV, radio, and comics scriptwriter, and magazine editor. His novel, The Demolished Man , was the first winner of the Hugo Awards in 1953.

While working as a scriptwriter for DC Comics, he created the supervillain Solomon Grundy and also wrote extensively for television, magazines, and radio.

7
H. P. Lovecraft

Image: Alejandro Piñero Amerio

An author whose work is as famous in the science fiction genre as it is in horror, H. P. Lovecraft was a writer of science fiction, fantasy, horror fiction, and a mixture of all these genres. His most notable work is the Cthulhu Mythos .

Some of his more popular works include The Call of Cthulhu, At the Mountains of Madness, The Shadow over Innsmouth , and The Shadow Out of Time . The central theme of his books is cosmicism, a theory dictating that "there is no recognizable divine presence, such as a god, in the universe, and that humans are particularly insignificant in the larger scheme of intergalactic existence."

8
Frank Herbert

Image: Pierre Bamin

Franklin Patrick Herbert Jr. is best known for writing the best-selling science fiction novel of all time, 1965's Dune , along with its five sequels. He also wrote short stories and worked as a newspaper journalist, photographer, book reviewer, ecological consultant, and lecturer.

His famous saga, set in the distant future and spanning millennia, explores complex themes, such as the long-term survival of the human species, human evolution, planetary science and ecology, and the intersection of religion, politics, economics, sex, and power in a future where humanity has long since developed interstellar travel and colonized thousands of worlds.

9
Ursula K. Le Guin

Image: Karsten Klemme

With a literary career spanning nearly sixty years, Ursula Kroeber Le Guin is another legendary name on this list. She is best known for her works of speculative fiction, including science fiction works set in her Hainish universe and the Earthsea fantasy series.

Frequently described as a science fiction author, Le Guin has also been called a "major voice in American letters," though she once said she would prefer to be known as an "American novelist."

10
Orson Scott Card

Image: Greg Rakozy

The only person to have won a Hugo Award and a Nebula Award in consecutive years, both for his novel Ender’s Game , and its sequel, Speaker for the Dead , Orson Scott Card is a science fiction writer who often features characters with exceptional gifts who make difficult choices with high stakes. Since 1979, he has published over 50 novels and 45 short stories.

During his childhood, Card read children's classics and popular novels, his favorite book being Mark Twain's The Prince and the Pauper . He often refers to works by Robert A. Heinlein and J. R. R. Tolkien as sources of inspiration.

History History 5 min read

FORGING OF A NATION

10 Key Moments in the Fight for American Independence

Image: John Trumbull

A pivotal period in our history, the American Revolutionary War saw the original thirteen colonies break free from British rule and establish an independent nation. This era was crucial not only for the struggle that liberated the country from colonial rule but also because it was when the nation and its ideals were conceived and envisioned. Here are 10 key moments that defined the American Revolution, shedding light on our forefathers' immense bravery and genius.

1
No Taxation Without Representation

Image: Board of Stamps

After the French and Indian War in 1763, American colonists were surprised to find that, instead of being rewarded for their efforts, the British Parliament raised their taxes and enacted new ones, such as the Stamp Act and Townshend Acts. Soon, these burdensome laws sparked widespread protests and boycotts under the rallying cry of "No Taxation Without Representation."

Initially, most colonists only wanted to be recognized as rightful British citizens. However, the brutal reaction of the Crown—sending troops to contain the unrest and force compliance—convinced many that independence was the only way to achieve their rights. The tragic incident known as the Boston Massacre on March 5, 1770, was the tipping point in this chain of events, inflaming anti-British sentiment.

2
Boston Tea Party

Image: W.D. Cooper

The Tea Act, enacted on May 10, 1773, granted the British East India Company a monopoly on tea sales in the colonies, further enraging the already weary colonists. This led a group of rebel colonists, known as the Sons of Liberty, to take matters into their own hands. In direct response to the Tea Act, they boarded British ships and dumped 342 chests of tea into Boston Harbor, worth £9,659 (equivalent to $1,700,000 today).

This act of defiance, later known as the Boston Tea Party , was a bold statement against British taxation and control. However, it also prompted the British government to further restrict colonial autonomy by implementing the Intolerable Acts (also known as the Coercive Acts).

3
The Midnight Ride

Image: National Archives and Records Administration

The British government's punitive measures only fueled the burgeoning revolutionary movement. In 1774, the First Continental Congress was convened, with representatives from each colony attending. During these meetings, the delegates agreed to coordinate militia training and resistance.

The situation remained tense for a year until King George ordered British troops to seize the rebels' weapons and arrest their leaders. However, the colonial militia was warned of the approaching British forces the night before, thanks to the heroic midnight ride of Paul Revere and other patriots. Their ride was crucial in mobilizing the Minutemen and ensuring they were prepared for the British assault.

4
Shot Heard 'Round the World

Image: William Barnes Wollen

The first shots of the American Revolutionary War were fired on April 19, 1775, in Massachusetts. British troops aimed to seize colonial arms, but the Minutemen refused to comply and confronted them, leading to a series of skirmishes known as the Battles of Lexington and Concord. These clashes demonstrated the colonies' determination to fight for their rights and ignited an all-out war.

The first significant military encounter of the American Revolutionary War, it resulted in a resounding American victory that encouraged other colonists to support and join the revolutionary efforts. Due to its significance and lasting consequences, the event was later referred to as the "shot heard round the world," a phrase that stems from the first stanza of Ralph Waldo Emerson’s 1837 commemorative poem.

5
Raising the Banner

Image: Winthrop Chandler

The Battle of Bunker Hill, fought on June 17, 1775, proved that the colonists could stand up to the British army. As Loyalist forces sought to capture the strategically important hills surrounding the besieged city of Boston, Patriot Colonel William Prescott directed his troops to occupy these positions in advance.

Though the battle was technically a British victory, the colonial forces inflicted heavy casualties on the British—approximately 1,000 British soldiers compared to around 500 American casualties. This showed the Crown that quelling the fight for independence would be a long and costly campaign, while simultaneously boosting American morale and convincing many that victory was within reach.

6
A Declaration of Independence

Image: John Trumbull

Emboldened by their success, on July 4, 1776, the Continental Congress—at the time the de facto unified colonial government representing each of the former colonies—adopted the Declaration of Independence .

Drafted primarily by Thomas Jefferson, the document declared the colonies' separation from Britain and articulated a vision of liberty and democracy , rejecting monarchy and aristocracy. It was a bold assertion of the colonies' right to self-governance, inspiring similar revolutionary movements around the world and influencing future generations.

7
Crossing the Delaware

Image: Emanuel Leutze

On Christmas night of 1776, General Washington led a daring and successful surprise attack across the icy Delaware River. This bold maneuver demonstrated both Washington's genius and leadership, as well as the Continental Army's resolve to defeat the British forces at any cost.

The subsequent victory at the Battle of Trenton significantly boosted morale and reinvigorated the revolutionary cause across the continent. Despite the British having considerable advantages, including a highly trained and battle-tested army, they systematically underestimated the revolutionaries, believing them to be merely a group of renegades whose defeat would restore loyalist allegiance to the Crown.

8
Turning the Tide

Image: John Trumbull

The American victory at the Battle of Saratoga in late 1777 marked a turning point in the war. Not only did American forces manage to capture a large British invasion army and halt the British advance in the north, but the triumph also resonated across Europe.

When news of General Burgoyne's surrender reached France, it convinced King Louis XVI to join the conflict as an ally to the Americans, providing much-needed military support and resources. This alliance significantly bolstered the American cause and forced the British to view the war as part of a larger global campaign, further straining their already depleted resources.

9
The French Connection

Image: Eugène Delacroix

The Siege of Yorktown in 1781 was the last major land battle of the Revolutionary War. American and French forces, led by General Washington and General Rochambeau, successfully trapped British General Cornwallis's army.

The Franco-American alliance proved decisive, compelling Cornwallis to surrender and prompting the British government to negotiate an end to the increasingly costly conflict. This effectively ended major combat operations and marked the beginning of the end for British rule in America.

10
Negotiating Peace

Image: John D. Morris & Co. after Wilhelm Anton Seiler

The Treaty of Paris , signed on September 3, 1783, officially ended the Revolutionary War. Negotiated by American diplomats Benjamin Franklin, John Adams, and John Jay, it recognized American independence and established borders for the new nation. The treaty delineated the boundaries between British North America, later known as Canada, and the nascent United States.

Although British efforts to undermine the American colonies persisted for decades, eventually leading to the War of 1812, the treaty granted legitimacy to the revolutionaries' efforts on the world stage and marked the beginning of a new era.

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