1

A change in plans

Image: Alexey Komissarov

Can a color be a worldwide celebrity? It seems so! This is the case of the famous "international orange" of the Golden Gate Bridge in San Francisco, California.

It's hard to imagine this iconic bridge in any other color. But believe it or not, it was once about to be painted in another hue.

The original idea was to paint the Golden Gate Bridge black with yellow stripes to make it visible to ships and planes. However, the sharp vision of consulting architect Irving Morrow changed the plans. When he saw the reddish color of the primer used on the iron, he realized that this color would work much better and would also give the imposing structure an original touch.

2

Too good to be true?

Image: Hana Oliver

We all know that incredible creatures and breathtaking landscapes await us in Yellowstone. You probably also know that this amazing area that covers more than 3,400 square miles in parts of Wyoming, Montana, and Idaho was the first national park in the United States. Not only that, it was actually the first national park in the entire world!

But, while it's totally famous and celebrated today, there was a time when only a few knew about this place. Early explorers who walked Yellowstone in the 19th century wrote detailed journals about what they saw and experienced there, but when they returned, they found that people didn't believe their stories. We have to admit that those skeptics had a point; such a beautiful place seems out of this world!

3

Capitol's subway

Image: Louis Velazquez

Nobody can deny the metro system is great. Its speed and efficiency allow thousands of people around the world to get to their homes and jobs every day. Did you know that the members of the U.S. Congress have their own subway system right underneath the Capitol building?

That's right! Under the impressive structure that houses U.S. Representatives and Senators lies an entire subway system. This allows workers there to access different parts of the complex in a matter of seconds. It must make things easier on busy days, don't you think?

4

The final detail

Image: MIKE STOLL

But not all of the Capitol's surprises are underground; some are in plain sight. We're talking about the spectacular dome that crowns the famous neoclassical building in Washington, D.C. While the dome is a symbol of our country today, there was a time when the Capitol Building didn't have this gracious final detail.

The construction was considered completed in 1800. However, one last touch was still needed. In 1824, the first and smaller dome arrived, made of wood. Finally, it was replaced in 1866 by the impressive dome we see today, which stands an incredible 288 feet high and is made of cast iron, brick, stone, and copper.

5

A misspelling?

Image: Dan Mall

The Liberty Bell must be one of the most recognized icons of the United States. Preserved as a symbol of our Independence, everyone can visit the famous bell at the Independence Hall in Philadelphia, Pennsylvania.

In addition to its well-known history and its famous "crack," this bell has even more hidden details to discover. When you read the inscription on the Liberty Bell, you'll be able to read "Pensylvania" instead of "Pennsylvania." While you could think that those in charge of inscribing the bell weren't paying attention, it wasn't actually a misspelling; it was one of the accepted spellings for Pennsylvania in those days.

6

Hollywood(land)

Image: Justin Aikin

Whether in person or through the screen, we all had the chance to see the legendary Hollywood sign over Mount Lee in Los Angeles, California.

But, while this landmark is recognized around the world today, it didn't always look as we see it now. The Hollywood sign had several changes throughout its history. It was first erected in 1923 as an advertisement for a real estate development. At the time, it read "Hollywoodland" and even had lights, illuminating the entire area at night.

Many things happened in our country before 1949, when the last four letters were removed, leaving just the current "Hollywood."

7

Good things take time

Image: Jeromey Balderrama

As we grow older, we understand one truth: good things often take time. While patience seems to be in short supply these days, it was certainly in abundance for those who built the impressive Mount Rushmore National Memorial, one of our most famous attractions.

The construction of this imposing monument that features the faces of George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln began in 1927 and took 14 years to complete. Carving four 60-foot-tall heads on a granite hill is no easy task. But, on top of that, some budget difficulties slowed down the process even more.

8

Mount Rushmore's secret door

Image: John Bakator

Mount Rushmore National Memorial has more secrets to disclose! Although not visible to the naked eye, there is a particular detail among the heads of Washington, Jefferson, Roosevelt, and Lincoln. Want to know what it is?

If you haven't heard about it, this might surprise you: there is a small door right there on Mount Rushmore. Mysteries everywhere! The door leads to a chamber known as the "Hall of Records." According to the plans of sculptor Gutzon Borglum, this spot would hold important documents and objects of our history.

9

Time capsule

Image: Mark Serafino

Besides being the tallest human-made monument in the United States and also the tallest arch in the world, the famous Gateway Arch in St Louis has much more to offer.

During its construction in the 1960s, a curious detail was placed inside its iconic metal structure. At the base of the monument, you can find nothing less than a time capsule!

The capsule, which contains various artifacts and relics from our country's history and culture, was thought to give future generations an idea of what the world and the United States were like in those days.

10

19th-century graffiti

Image: Dineda Nyepan

At 555 feet tall, the Washington Monument is one of the most imposing in our country. But besides its height, this landmark also possesses a couple of surprising facts.

It might seem that graffiti is a modern artistic expression that has only been around recently, but this isn't the case, and the Washington Monument is proof of that. At the structure's base, there is a series of graffiti made in the 19th century, during the Civil War.

That's right! Many people and soldiers passing by at the time left signatures, dates, and patriotic messages inscribed on the famous obelisk, and some of them are still visible!

1

Gold Rush myths bubbled up immediately

Image: Tomáš Malík

It didn’t take long for the truth to get buried. As soon as gold was discovered, the stories started to shimmer. Tales of instant wealth, golden boulders, and rivers gleaming with nuggets.

Letters home were often exaggerated, and newspapers sensationalized every find. These myths fueled the frenzy and caused proverbial FOMO all over the world. People wanted to see it for themselves.

2

The best Western business wasn’t in fact gold

Image: Stefan Münz

If you wanted to get rich during the gold rush, you had better chances opening a store than mining. That was the golden rule for smart entrepreneurs like Levi Strauss, who didn’t strike it rich in a streambed, but in a sewing room. Another legend, Samuel Brannan, made a fortune selling picks, pans, and shovels —not gold.

3

The "49ers" were actually latecomers

Image: Emilie

The famed "49ers," the nickname for those swept up in the gold frenzy in 1849, weren’t the first on the scene. There’s a plot twist. Gold was discovered in January 1848 at Sutter’s Mill.

But the news spread slowly . By the time the world caught on, most of the easily accessible gold had already been plucked from riverbeds by locals, soldiers, and early arrivals.

4

Thousands came from China and South America

Image: rc.xyz NFT gallery

The Gold Rush was a global stampede . Tens of thousands of Chinese immigrants crossed the Pacific, some bringing generations of mining knowledge with them. Others came from Chile, Peru, and Mexico, arriving in San Francisco to find opportunity.

5

Women were there not just as camp followers

Image: Michael & Diane Weidner

Women were there too, not just as wives, but as businesswomen, cooks, hoteliers, and even miners. Take Luzena Wilson, a widow who hauled her children west and set up a boarding house for miners. Her clean beds and hot meals turned into a booming business.

Others ran laundries, tended bar, or staked their own claims. In a lawless land where survival meant creativity, many women found fortune in hard work.

6

Some came from Hawaii, Russia, and Europe

Image: Trey Hollins

They called them " Argonauts ," a romantic nod to the Greek myth of Jason and his quest for the Golden Fleece. And like the legend, the real Gold Rush was international. Adventurers came not just from the American East, but from as far as Russia’s Pacific coast, the Hawaiian Islands, and every corner of Europe.

7

Gold Rush towns became ghost towns

Image: Stefan Münz

Take Bodie, for example. A lawless hotspot where saloons outnumbered schools. At its peak, it had over 10,000 residents. A few decades later, it was all tumbleweeds and creaky wood .

Once the gold ran out, so did the people. Tools were abandoned and whole towns vanished almost overnight, leaving behind eerie remnants.

8

The "Gold Fever" spread worldwide

Image: suradeach saetang

Once word of gold reached distant shores, "gold fever" spread around the world . Australia had its own rush by 1851. The Klondike in Canada followed in the 1890s, and South Africa’s rich deposits turned Johannesburg into a boomtown in the 1880s.

Prospectors chased hope, not just gold. Each new report of found gold sparked a fresh migration, with fortune-seekers packing up and heading to the hot spots.

9

Gold mining required team effort

Image: Elena Mozhvilo

Forget the image of the lone prospector whistling by the river . That only worked for a short time.

As surface gold dried up, miners turned to hard labor, which involved blasting rock, diverting rivers, and eventually using powerful water cannons in a process called hydraulic mining. It was expensive. Teams of men pooled resources, hired help, and invested in equipment.

10

Many "Gold Seekers" never even made it to California

Image: James Lee

Getting to California in the 1840s was no stroll through the prairie. Hundreds of the hopefuls who set out never arrived. Some perished on the overland trails due to disease, accidents, or exhaustion.

The sea route around Cape Horn was no solution; it was just longer and colder. Some turned back. Others settled in Oregon or Utah. A few found fortune far from the gold fields.

11

The "Gold Rush" fueled California's statehood

Image: Emre Ayata

In 1848, California was a sleepy outpost with little U.S. oversight. By 1850, it had boomed into a booming, brawling land with more than enough people.

The rush had brought merchants, farmers, lawyers, and politicians. With them came the push for schools, railroads, and laws. California skipped the usual phase of being a U.S. territory and leapfrogged straight into statehood.

12

Women and children wrote some of the best eyewitness accounts

Image: The Cleveland Museum of Art

Some of the most vivid details of this era came from women and children who chronicled the chaos . Their letters and diaries tell of lonely cabins, muddy streets, makeshift schools, and the daily drama of camp life.

Women like Louise Clappe (aka "Dame Shirley") wrote witty, unfiltered dispatches from the Sierra Nevada. Young girls described the thrill of arriving in San Francisco and the terror of crossing the plains.

13

The Gold Rush didn't end in 1850

Image: Michael & Diane Weidner

By the time most folks arrived, the easy pickings were gone, and the story was just getting started.

The gold fever didn’t vanish in a year. Prospecting surged well into the 1850s and beyond. Some of the biggest strikes, like Nevada’s Comstock Lode in 1859, came after the main rush was supposedly over. By then, mining had evolved into an industrial enterprise, with machinery, corporations, and deeper digs.

1

Anchisaurus

Image: Simon Infanger

Anchisaurus is one of the first dinosaurs discovered in American territory, although it was not correctly identified at the beginning. The first fossil of this herbivore was found in East Windsor, Connecticut , in 1818, but it was then believed to be part of a human skeleton. In subsequent years, other specimens of this species were uncovered in the area.

It measured 8 to 20 ft in length and lived 210 million years ago in the Portland Formation, Northeastern United States. In the late Triassic and early Jurassic periods, the Connecticut Valley was a dry, steep depression, and it was possible to pass from here to the east and the center of what is now Africa. This explains why some dinosaurs lived both in America and other continents.

2

Triceratops

Image: photo_steff

One of the most iconic dinosaurs found in America is the Triceratops, a herbivore that lived 70 to 65 million years ago, right at the end of the Age of Dinosaurs, in the Late Cretaceous. Its name derives from Greek and means "face with three horns". One of the largest horned dinosaurs**,** it stood around 7.5 ft tall and weighed about 5 rhinoceroses, the equivalent of 10 tons.

Fossils of this dinosaur have been found in abundance in the Hell Creek Formation in Montana and South Dakota. No fossils of this dinosaur have been found on any other continent. Triceratops has been the state dinosaur of Wyoming since March 1994.

3

Allosaurus

Image: WikiImages

Allosaurus was one of the largest carnivores of the Jurassic period and its remains in the United States have been found mainly in the Morrison Formation, which covers states such as Colorado, Utah, and Wyoming. It lived 155 to 145 million years ago in North America, Africa, Australia, and possibly China. Also, did you know that the Allosaurus fragilis is the state fossil of Utah?

This bipedal dinosaur was an agile hunter with powerful jaws and sharp teeth. It was a theropod, not as huge as the largest carnivore, Tyrannosaurus rex, but just as fearsome. Allosaurus was bigger than an elephant and heavier than a rhino. Its name means "different lizard" due to its rare concave vertebrae.

4

Stegosaurus

Image: ariesa66

Another inhabitant of the Morrison Formation was the Stegosaurus, famous for its dorsal plates and spines on its tail, which it used for defense. Stegosaurus used to walk on all fours, grazing on low vegetation. Its head was perfectly adapted to this way of feeding. It was first described in 1877 by Yale paleontologist Othniel Charles Marsh, and its name means "roof(ed) lizard".

This Jurassic herbivore has been discovered in several states in the western United States. Scientists have found many fossils, showing that it was a very common creature for 10 million years, despite its tiny brain, small head, and useless teeth. The discovery of the Stegosaurus has helped them better understand the anatomy and behavior of armored dinosaurs.

5

Tyrannosaurus rex

Image: Elly Enn

Is Tyrannosaurus rex the most famous dinosaur on the planet? Portrayed by pop culture to the hilt, this formidable predator is known for its gigantic size, razor-sharp teeth, and bipedal posture. However, its popularity has a logical explanation. T. rex is also one of the best-represented dinosaurs in the fossil record, with several complete specimens discovered, particularly in the states of Montana, South Dakota, and Wyoming.

Based on bones found in the late 19th century, paleontologist Henry Fairfield Osborn recreated the first drawing of this gigantic creature. He named it Tyrannosaurus rex, meaning "tyrant lizard king," because it is believed to have been the most dangerous dinosaur and the largest land carnivore of all time. Although it is estimated that up to 1.7 billion T. rex dinosaurs lived on Earth, only about 30 nearly complete skeletons have been found. Think about that!

6

Deinonychus

Image: Steve Wrzeszczynski

This small but ferocious theropod lived during the Cretaceous period about 115-108 million years ago. Deinonychus is known for its sickle-shaped claws on its feet, used for hunting. Its name, unsurprisingly, means "terrible claw". Like all bipeds, it moved only on its hind legs and is believed to have been able to run at 25 miles per hour: more than the average Olympic champion.

Deinonychus fossils were found in Utah, Oklahoma, Montana, and Wyoming, in rocks of the Cloverly Formation and Antlers Formation. The study of this species, beginning in the 1960s, revolutionized the way scientists thought about dinosaurs, providing fascinating new insight into smaller predators.

7

Ankylosaurus

Image: mdherren

Ankylosaurus is one of the best-known armored dinosaurs, which lived at the end of the Cretaceous period. It had bony protrusions on its head and all over its body as protection against the teeth and claws of predators. The armor was made up of small plates of bone welded together, constituting a shell as effective as that of turtles.

This gigantic herbivore roamed the jungles of North America about 68-66 million years ago, almost as well protected as a modern tank. The first specimen of Ankylosaurus was found in 1906 in the Hell Creek Formation, near Gilbert Creek, Montana. Other fossils of this species were discovered in other parts of Montana and Alberta, Canada, in the following years. However, to this day, it has not been possible to obtain a complete skeleton.

8

Hadrosaurus

Image: Jordyn St. John

The first Hadrosaurus fossils were discovered by William Parker Folke, an amateur paleontologist, in 1838 in Haddonfield, New Jersey. The excavation site, known as the Hadrosaurus foulkii Leidy site, is now a National Historic Landmark. Hadrosaurids are known for their duck-billed mouth, with a powerful jaw containing several rows of teeth for chewing all kinds of leaves.

In 2004, scientists found a mummified Hadrosaurus specimen in North Dakota. This fossil is extremely unusual and valuable, as dinosaur soft tissue including skin and muscle is rare. This find allows us to learn more about this species and how they lived 67 million years ago.

9

Diplodocus

Image: michaelwedermann

Diplodocus means "double beam" and is so named because of the double bones in its tail. This was one of the longest animals on earth. It was about 79-85 ft long, 15 ft high, and weighed 15 tons. It could reach the tops of towering trees for food, and its small head allowed it to forage in vegetation where few other dinosaurs could reach.

Although some Diplodocus fossils were discovered earlier near Cañon City, Colorado, the most notable find came a few years later. In 1899, Funded by Scottish-American steel tycoon Andrew Carnegie, members of the Carnegie Museum of Natural History found a well-preserved Diplodocus skeleton in the Morrison Formation of Sheep Creek, Wyoming. With these fossils, the museum created a composite mount that became very popular and even got to tour the world.

10

Apatosaurus

Image: Cup of Couple

Apatosaurus is one of the best-known sauropods that inhabited North America during the Jurassic period. These herbivorous giants, with their long necks and tails, have also been discovered in the Morrison Formation, mainly in Colorado and Utah. It is believed to have lived 150 million years ago, at the end of the Jurassic period.

Apatosaurus could reach 69-75 ft in length, 20 tons in weight, and was one of the largest sauropods. It had a long neck containing 15 huge bones supported by powerful muscles that allowed it to feed on the leaves of the tallest trees. Perhaps this dinosaur sounds familiar. It has been the inspiration for numerous beloved animated characters: Littlefoot from The Land Before Time and Arlo and Poppa Henry from Pixar's The Good Dinosaur are Apatosauruses.