The ruins of an abandoned church loom within a picturesque Ukranian village.

A subterranean Holocaust refuge within one of the world's longest cave systems.

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

The largest catacomb system in the world.

A quirky collection flush with information on commode culture from ancient times to modern day.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

340-foot statue built to honour the Heroes of the Soviet Union.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

Walk 2,300 feet above the ground on the "Troll's Tongue."

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