One man's swirling six-acre monument of stone.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

This Nebraska town wants to double its population with plywood cut-outs of townsfolk.

The abandoned remnants of a little sanctuary for world peace that fell into disrepair.

Other-worldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

This erect, phallic geological spire wasn't always named so domestically.

An experimental, automotive replica of Stonehenge.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

This derelict superstructure was a very important warning system for the Soviet military.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

A fascinating little museum all about the rich history of Peru’s famous plant.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

What happens when you cross a mayor and a painter?

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

Space-age monument to an early 20th-century uprising.