This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

Neo-cave art on the macro scale.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

The little church's beautifully frescoed ceiling has earned it the nickname “the Sistine Chapel of Madrid.”

This Shetland Islands bus shelter may be small, but it squeezes in a couch, a desk, some art, and even an old telly.

Across the islands, baked goods, sauces, and much more are for sale 24/7.

A remarkably well preserved tower dating all the way back to the Iron Age.

This tiny island featuring 9th-century Viking ruins is only accessible at low tide.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Thanks to both terrific preservation and historic vandalism this ancient site is known as the "Heart of Neolithic Orkney."

Possibly the oldest of Britain's ancient henges is also one of its most stark.

This brilliant display of whirling fireballs celebrates Hogmanay.

A curious cave church carved into the face of a cliff.

Carefully reconstructed after the Bosnian War, this 16th-century bridge stands as a symbol of the country's enduring multicultural heritage.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

A public work of art that also provides some relief from the summer heat.

A miniature train-ride through Slovenia's largest cave system.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

Climb inside an iron crystal magnified 165 billion times its normal size.

Brussels' favorite peeing boy has a sister.

Meet the bronze beloved pet to a family of famous peeing statues.