This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

The underground sanctuary of a mysterious ancient cult.

The world's longest outdoor escalator takes visitors to the top of China's largest dam and is also shaped like a dragon.

These 40,000-year-old stenciled hands are older than the famous cave art in France and Spain.

A haunting theme park is slowly being swallowed by the jungle.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

An unrealized Taoist palace left abandoned in a Houston suburb.

A park filled with vibrant mosaics created by more than 300 folk artists.

Fantastic collection celebrating the final send-off.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

Greenery cloaks this serene sculpture inspired by the famous Lost Gardens of Heligan.

Hauntingly beautiful totem poles left by the Haida.

Beijing's expansive subterranean hiding spot now crumbles away as a tourist destination.

These mountain hot springs have seen power struggles, doomed romances, and a generalissimo's attempted escape from mutiny.

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

Mined to a depth of 240 meters with a perimeter of about 1.6 km, the largest hand-dug excavation in the world.

Staves, storm-calling, and of course, necropants.

Along this wire fence, travelers have been leaving a particular memento since 2012.

This oceanside Reykjavik spot is speckled with recycled sculptures and large stones.

This museum dedicated to divination also honors a local 10th-century prophetess.

A modern artist's primitive stone faces and unique rock instrument join Iceland's terrain with its history.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.