This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Odd outsider art installations surround a Gold Rush-era ghost town.

The histories of modern Chinese literature and anti-Japanese resistance collide in this Shanghai park.

The once highest point in China blends symbolic design with a kick of adrenaline.

This sculpture pays homage to the street sweepers of Madrid since its inauguration in 2001 in Plaza Jacinto Benavente.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

Commonly acknowledged as the only public monument to the Devil himself.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Legend says this sacred tree was a gift from goddess Athena.

The legendary wooden horse that stands in modern Troy is a prop from the 2004 Wolfgang Petersen film.

The only Roman honorific column in Istanbul.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

The ornate miniature mansions were built for Istanbul's feathered residents.

Roman ruins top white travertine terraces formed by ancient hot springs.

A marvel of Byzantine engineering under the streets of Istanbul.

Enjoy a slice under the midnight sun at the world’s northermost Domino’s.

This boat represents the promise of undiscovered territory, a dream of hope, and progress and freedom for Iceland.

A tiny village church in dramatic surroundings.