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Nanotechnology in a Roman chalice -

The Lycurgus Cup is a 1,600-year-old chalice from Ancient Rome that changes color depending on which side light shines through it.

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Nanotechnology in a Roman chalice -

The Romans experimented with extremely small particles of gold and silver. These nano particles make the cup change colors. Pretty cool, right?

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Tombstones at the beach - In 2012, a number of 19th-century tombstones washed ashore at Ocean Beach in San Francisco.

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Tombstones at the beach - The reason? At the turn of the century, cemeteries within the city limits were shut down and the tombstones used as construction material for various projects, including a sea wall.

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Rain of fish - Every year, residents of Yoro in Honduras come across hundreds of fish on the streets. This even though Yoro is miles away from the ocean.

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Rain of fish - They call the phenomenon "lluvia de peces" ("rain of fish" in English). Various theories have been put forward, including divine intervention, but none is conclusive.

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Wallabies in Ireland - We usually find these adorable marsupials in Australia. So how did they end up in Lambay Island, just off the Irish coast?

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Wallabies in Ireland - Apparently, they were taken there by a family in the 1950s and somehow adapted to the climate!

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Indian cobras in the United States - In 1953, at least 11 venomous Indian cobras were found in Springfield, Missouri.

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Indian cobras in the United States -

It wasn't until 1988 that a man came forward and confessed that he had unleashed the deadly animals.

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Stonehenge at the bottom of a lake - In 2007, researchers found a structure of massive stones arranged in a circle on the bottom of Lake Michigan in the United States.

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Stonehenge at the bottom of a lake - Not much is known about this Stonehenge-like structure. Whether it's legitimate or if the stones were purposely placed there is yet to be determined.

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Underwater river - Divers made a fascinating discovery in Cenote Angelita in Mexico—an underwater river.

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Underwater river - The "river" is made possible due to being surrounded by a cloud of hydrogen sulphide, a toxic gas.

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Whale fossils at a farm - In 1849, construction workers found whale fossils at a farm in Vermont. But the weird thing is that the discovery was made about 200 miles (322 km) away from the ocean.

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Whale fossils at a farm -

The fossils are estimated to be around 12,500 years old.

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Shark at a golf club - It seemed like a normal day at San Juan Hills Golf Club in California, until a leopard shark fell from the sky!

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Shark at a golf club - The shark was probably caught by a bird and eventually dropped. Luckily, golf club employees managed to rescue the animal and return it to the ocean.

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Locomotives at the bottom of the ocean - In 1985, two locomotives suspected to date back to the early 1850s were found off the coast of New Jersey.

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Locomotives at the bottom of the ocean - There are a number of theories as to how the locomotives ended up there, but no conclusive explanation.

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Lifeboat on an uninhabited island - Bouvet Island is a remote uninhabited island in the Atlantic. But despite being in the middle of nowhere, a lifeboat was discovered on the island in 1964.

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Lifeboat on an uninhabited island - The boat belonged to the crew of a whaling ship that got trapped in bad weather. They were eventually airlifted from the island, leaving the lifeboat behind.

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Organic matter in a meteorite -

In 1864, a large meteorite fell in France. The Orgueil meteorite was massive and one of the oldest ever found on Earth.

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Organic matter in a meteorite - Scientists claimed to have found organic matter in the rock. But later studies revealed that these were intentionally "planted" in the meteorite back in the 19th century.

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Ancient microbes in crystals -

Naica Mine in Mexico is full of huge crystals. Extremely high temperatures and humidity have made it nearly impossible to explore the mine.

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Ancient microbes in crystals -

But in 2017, researchers made an amazing discovery: tiny organisms in the crystals. Scientists suspect they have been living there for 10,000 to 50,000 years.

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Ships in the desert - If you venture into the desert outside Moynaq, Uzbekistan, you'll find a number of rusty ships.

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Ships in the desert - The area, known as the Aral Sea, was, in fact, the world's fourth-largest lake. But it dried up over the past 40 years or so.

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Spider in the water - Are you afraid of spiders? Do you think you'd be safe in the water? Think again.

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Spider in the water -

You may encounter a diving bell spider! These arachnids essentially live in a bubble underwater.

See also: The odd, the unusual, and the downright weird.

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