The telescope that discovered Neptune.

A fearsome dragon clings to a corner of Munich's city hall.

A monument to the King's final show, complete with a time capsule.

This Indianapolis landmark offers a secret panoramic view of the city. 

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

This penis-focused monastery is dedicated to Buddhism's "Divine Madman."

A monument to the center of the North American continent may be off by a few miles.

Order “Proletariat’s Cutlet” at this communist-themed restaurant allegedly once visited by Lenin.

It's a mystery how these curious columns wound up in an Edinburgh suburb.

The building where Mary, Queen of Scots was said to have bathed in white wine.

Massive stele returned to Ethiopia after 70 years in Rome.

Have a soak at this retro bathhouse, where you will find Japan's first electric bath, tiling from Spain, and wood carvings representing the Japanese invasion of Manchuria.

Ancient Peruvian fertility temple or modern money-making hoax? Either way these monoliths still look like penises.

A cave covered with bizarre stalactites of cloth.

The crumbling remains of a once-grand building.

This striking Victorian Home with its 113-foot turret is best known as the site where abolitionist John Brown was executed in 1859.

Bizarre living fossil only grows in a small chunk of the Namib Desert.

This stone windmill marks an old, mysterious homestead in what is now central Austin.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

This grisly exhibit houses skeletons and weapons from a devastating 14th-century clash.

A piece of Seattle’s historic Chinatown preserved inside a modern museum.

An ancient burial ground believed to have been used for ritual sacrifice.

Temporary Burning Man sculpture made of two 18-wheelers.