1

Death Cap (Amanita phalloides)

Image: Rémi Müller

The first mushroom in our list is also the most toxic in the world. It was originally found only in Europe until imported trees transported it to America and everywhere else. Over time, Death Caps adapted to native trees, enhancing their ability to proliferate.

These unassuming-looking mushrooms have tinted green caps, white stems, white gills, and a white partial veil . They grow around oak, beech, chestnut, birches, hornbeams, spruce, and pine. Death Caps fruit in summer through fall underneath these trees, and are responsible for more than 90% of all mushroom poisonings and fatalities worldwide.

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Destroying Angel (Amanita bisporigera)

Image: Sai Kiran Belana

Another member of the Amanita species with an ominous name, the Destroying Angel is the number one toxic mushroom in North America and is extremely widespread. Its all-white cap and stem often lead to mistaken identity with button mushrooms and meadow mushrooms.

The Destroying Angel grows from a white volva egg-like sac, features gills, and has a tall, slender stem . Its stems typically range from 3 to 8 inches in length, making it stand out in the forest like an all-white apparition. None of the common lookalikes grow this tall.

3

Funeral Bell (Galerina marginata)

Image: Lucas van Oort

The Funeral Bell appears somewhat harmless, and most poisonings are from mistaken identification. This "little brown mushroom" closely resembles several edible species, including the widespread Sheathed Woodtuft.

Funeral Bells grow on rotting wood, preferring conifer species, though they are not limited to them. They are found across North America, Asia, Australia, and Europe. This mushroom features a cone-shaped brown cap, light brown gills, and a tan to rusty-brown stem . A key distinguishing feature is a membranous ring around the upper part of the stem.

4

Pholiotina rugosa (previously Conocybe filaris)

Image: Kadri Võsumäe

A common lawn mushroom prevalent in the Pacific Northwest, this deadly fungus contains amatoxins, which destroy the liver and can cause death. Pholiotina rugosa is slender, petite, and rather innocent-looking. The cap is smooth, brown, and conical, with rusty brown gills underneath . The stem is also brown and features a distinctive, prominent ring around the middle—a key identification feature.

This deadly mushroom isn’t picky about habitat. It will grow on the lawn, soil, compost, and woodchips. P. rugosa is easily transported to new locations through woodchip and compost deliveries and adapts to new environments with little trouble.

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Fool’s Funnel (Clitocybe rivulosa)

Image: Hoejin Iwai

Fool’s Funnel grows across North America in meadows, lawns, and other grassy areas from summer through autumn. It often grows in fairy rings, and accidental consumption by children or pets is a significant concern. These toxic mushrooms are small, white, and benign-looking . The caps are white and funnel-shaped, with crowded white gills underneath. Fool’s Funnel stems are also white and lack distinctive markings.

While this fungus rarely causes death, its ingestion will cause severe pain. This mushroom contains high levels of muscarine which acts as a nerve agent when ingested.

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Deadly Webcap (Cortinarius rubellus)

Image: Markus Spiske

Another mushroom with a foreboding name, the Deadly Webcap, is found in coniferous and mixed forests across North America. It contains a toxin called orellanine, which can cause severe kidney failure when ingested.

The Deadly Webcap bears a close resemblance to edible species like the Chanterelle , making it especially dangerous for foragers.

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False Morel (Gyromitra esculenta)

Image: jaStra

As the name implies, the False Morel is a toxic mushroom closely resembling the highly prized Morel mushroom . It contains a toxin called gyromitrin, which can cause severe gastrointestinal symptoms, seizures, and even death if ingested in large quantities.

There are multiple species of False Morels, and current evidence suggests that many are safe to eat, while Gyromitra esculenta should still be foraged with caution. Many people consume this mushroom, but only with proper preparation. This is not a mushroom you can simply sauté and eat; proper preparation is necessary to remove most of the toxins, making it "safe.

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Common Conecap (Pholiotina rugosa)

Image: Oliver Fetter

This small brown mushroom contains the same deadly amatoxins found in the Death Cap and Destroying Angel. It is commonly found on or around wood mulch , particularly in landscaped areas. Its tendency to appear in yards makes it especially dangerous. Ingesting even a small amount of this toxic fungus can result in severe illness or death.

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Amanita Muscaria

Image: Егор Камелев

Probably the most recognizable mushroom shape in the world is Amanita muscaria . Its stereotypical toadstool stands out in the woods thanks to its bright red cap with white spots and a white stem . These mushrooms are considered toxic and can cause pain but are unlikely to cause death.

Few mushrooms share the same scarlet hue that makes them so visible in green and brown underbrush. The white bumps on the cap also create a distinct, eye-catching pattern.

10

Green-Spored Parasol

Image: Timothy Dykes

Known as "the vomiter" for the effects it can have on anyone who consumes it, the Green-Spored Parasol has the same general shape as the Death Cap and Destroying Angel. Its stem is tall and thin, with a skirt that sits just under the cap . This cap ranges from rounded downward to wide and flat, depending on the mushroom’s age.

The symptoms from its ingestion range from extreme stomach irritation to bloody diarrhea, as well as the aforementioned vomiting. Therefore, caution is advised.

1

The first toll

Image: Barry A

When the bridge first opened to cars, the toll was 50 cents each way, $1 for a round trip, and an additional 5-cent charge for cars carrying more than three passengers. While this may not seem like much today, that money was crucial in covering the construction costs. In today’s terms, the toll would be equivalent to about $11 .

2

The Half-Way-to-Hell Club

Image: Rasmus Gundorff Sæderup

Building this massive suspension bridge was no easy task, and the story of the "Half-Way-to-Hell Club" members proves just how dangerous it was. These 19 workers were on the job when they slipped and fell from the bridge . But in the midst of their fall, something saved them : a safety net placed under the bridge, an ingenious and innovative safety measure for the 1930s.

3

A different picture

Image: Leo_Visions

While it's hard to imagine the Golden Gate Bridge without its iconic "International Orange" color, the original plan was actually quite different. During construction, they considered painting the bridge black and yellow to give it visibility. However, when the architects saw the beautiful reddish-orange hue of the primer, they decided to keep it. We have to say we're glad they didn't go with the original idea!

4

Good citizens

Image: Zoshua Colah

San Franciscans redefined what it meant to be good citizens when, during the Great Depression, they helped fund the Golden Gate Bridge by putting up their homes and farms as collateral to make the project a reality. This incredible show of faith during one of the nation's toughest economic times is truly inspiring.

5

Really heavy

Image: Leo_Visions

With its immense size and structure, it’s no surprise that this imposing bridge is incredibly heavy. Even so, the number might still shock you: The Golden Gate Bridge weighs around 894,000 tons! That's nearly the equivalent of 2.5 Empire State Buildings!

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5,000 - 10,000 gallons

Image: JOSHUA COLEMAN

Its weight goes hand in hand with its size: the bridge is about 1.7 miles long from end to end, and its towers rise 746 feet above the water. This means the amount of paint required to cover it is anything but small. To repaint the bridge, between 5,000 and 10,000 gallons of its iconic color are used.

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Dangerous challenges

Image: Anastasia R.

The completion of the Golden Gate Bridge had its challenges. In 1935, a powerful 7.8 magnitude earthquake struck the area, causing the entire San Francisco Bay Area, including the bridge under construction, to shake violently. One worker reportedly recalled that the south tower swayed 16 feet in each direction while several of his colleagues stood on it!

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200,000 pedestrians

Image: fan yang

The grand opening of the Golden Gate Bridge on May 27, 1937, was far from low-key. Before it was opened to cars, a "Pedestrian Day" event took place, where an extraordinary 200,000 people walked across the city's brand-new bridge, each paying 25 cents to do so.

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Once the tallest of its kind

Image: Casey Horner

As a suspension bridge, the Golden Gate Bridge is impressive not only for its size but also for its engineering. In fact, when it opened in 1937 and until 1964, this San Francisco landmark held the world record as the tallest suspension bridge in the world!

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800,000 people

Image: Kiko Camaclang

Yes, the 200,000 people who attended the bridge's opening made for a huge crowd. But 50 years later, that number quadrupled! That's right; during the 50th anniversary of its opening, around 800,000 people walked across the iconic Golden Gate Bridge. It's hard to even imagine what such a giant crowd would look like!

1

How the White House gained its name

Originally, the building was called the "President’s House." That only changed after the 1814 fire. During the War of 1812, British troops marched into Washington and set many buildings on fire, including the main one.

Walls were scorched, and smoke damage lingered inside and outside the building. When repairs began, painters coated the building white to cover the burn marks . This resulted in the "White House" nickname. Nearly a century later, Theodore Roosevelt made it official.

2

A hidden underground beneath America’s books

Have you ever heard of the Library of Congress's underground tunnels? Most visitors never see them or learn about them. They connect their buildings, allowing staff to transport rare books and documents safely and efficiently. Fragile, valuable materials had better be protected from the weather, the sunlight, and, well, the people!

3

The Golden Gate Bridge wasn’t supposed to stay red

The reddish color of the Golden Gate Bridge (officially named "International Orange") was supposed to be a temporary priming coat to protect the steel.

However, when engineers looked at the bright color peeking through the fog against the stunning blue and green of the San Francisco Bay, they said, "You know what?" It should stay like that. The Navy proposed painting it black and yellow, but it was never done. The stunning color turned it into one of the most iconic buildings in the world.

4

The Empire State Building wanted to welcome airships

Back in 1931, the Empire State Building’s spire was intended as a mooring mast to serve as a docking station for airships. The idea was that passengers should be able to step directly into Manhattan from the sky!

Sure, it was a futuristic plan, but it was eventually dismissed for being wildly dangerous. Passengers would have had to climb out at dizzying heights in strong winds. Not ideal! And certainly not glamorous.

5

The famous ceiling that got the stars wrong

You may have seen images of Grand Central Terminal’s celestial ceiling —or seen it with your own eyes. But there’s a twist: Did you know that the constellations in it are painted backward?

The way they are represented is as if viewed from outside the universe, rather than from Earth. Whether it was a mistake by the artist or it was an intentional reverse on cosmic perspective, the terminal ceiling has looked like this since its opening in 1913.

6

The president who quietly ran a whiskey empire

George Washington is remembered as a general and a president, of course. But he was also a major whiskey producer. Hidden on the grounds of Mount Vernon was a fully functioning distillery, built in the late 1790s.

By the time of Washington’s death, it was producing nearly 11,000 gallons of whiskey a year. That made him one of the largest distillers in the young United States!

7

The iconic façade didn’t exist during the battle

When you think of the Alamo, you surely picture its iconic façade. However, that structure was not part of the original mission!

During the famous 1836 battle, the building looked far simpler, and it lacked its now-famous curved top. That façade was added decades later by the U.S. Army when the structure was used as a supply depot

8

Why visitors can no longer climb to the torch

Did you ever hear some old relative’s anecdote ot climbing all the way to the top of Lady Liberty’s torch? They weren’t lying: Up until 1916, visitors could. However, around that time, some explosions in a nearby munitions depot sent shockwaves through the statue.

The blast damaged the torch and weakened its structure. For safety reasons, access was permanently closed to the public.

9

The concrete that is still hardening today

The Hoover Dam contains so much concrete that it generates heat as it cures. Engineers knew that if poured as one solid mass, it would take more than a century to cool and could crack.

Instead, they built it using interlocking concrete blocks, each cooled with circulating water. Even so, parts of the dam are still slowly curing today.

10

The building that accidentally cooked its neighbors

When the Walt Disney Concert Hall opened in Los Angeles, its gleaming metal exterior stunned visitors. But it also caused an unexpected problem…

The highly reflective steel panels bounced sunlight onto nearby sidewalks and apartments. In some spots, the glare was so intense that it melted materials! As a result, engineers eventually had to dull parts of the surface.

11

The Capitol’s dome isn’t stone

The grand, massive dome atop the U.S. Capitol looks like solid stone, doesn’t it? But, in fact, it is made of cast iron.

In the mid-1800s, stone was considered too heavy and expensive for such an ambitious structure. Cast iron allowed builders to create a taller, more ornate dome that weighs nearly nine million pounds.