A giant Troll lurks under one of Seattle's oldest bridges.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.

Giant marble phalluses on the sacred island of antiquity.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

The hallucinogenic center of the ancient world.

There are millions of temples in India, but only one prominent temple dedicated to the Hindu creator god.

The oldest still-inhabited hill fort in India looks like a magnificent golden sandcastle.

This stunning 15th-century royal hill fort preserves the age of chivalry in Rajasthan.

The world's second-largest sundial, made entirely out of stone.

Once an indicator of social class, the color blue has come to define this city on the edge of the Thar Desert.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

In this Romani neighborhood lies a museum dedicated to the culture and history of the Roma.

Mummified monks and the accidentally interred, in a 17th-century crypt.

Macabre astrological automaton clock dating to the late 1400s.

An old department store turned Nazi prison turned artist commune.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

From Ancient Rome to WWII, Neupfarrplatz has over 2,000 years of history underneath its main square.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Go surfing on this urban wave, "hacked" by local surfers.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.