Celebrated as a center of civilization, the remains of the ancient city have been nearly destroyed by greed, egoism, and war.

The ominously named cave is home to some remarkable ancient art.

This supper-club-turned-concert-venue still serves drinks at its original rotating bar.

The highest tropical mountain range in the world is in Central Peru, home to a vast array of exotic and quirky plants and animals.

This remote Himalayan temple is in danger of being completely washed away by a melting glacier.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

The headquarters of the Mahanikai school of Buddhism, Thailand's largest monastic order.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

Castro's communist ice cream mothership has been serving five-scoop "salads" for over 50 years.

Sited in an Inner Mongolian desert are the remnants of an important trade stop along the Silk Road.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

One of the last examples of Soviet architectural propaganda has a few technological tricks up its sleeve.

This tiny river island switches sovereignty every six months as part of a rare, centuries-old agreement.

During the 1990's nearly all of the world's LSD is thought to have come from the operators of the lab once located in this missile silo.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

There has been an astronomical clock on this spot since the 14th century.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

An unusual but excellent display created in the 1930s as propaganda against the Freemasons.

Historical figures from New York City's Catholic community reside in Midtown.

This recently restored crypt was once plagued by liquefying coffins and exploding caskets.