An ancient Ethiopian cave church is endangered by the simple building of a road.

An otherworldly restaurant perched on the edge of a jagged cliff next to a medieval holy city.

An Ethiopian "Jerusalem" featuring a church hewn out of a single rock.

Stunning ruins of what was once the center of one of the greatest empires in East Africa.

A salty red wasteland in Tanzania is a breeding spot for endangered flamingos.

A sculpture park that takes the use of clay to a whole new level.

Fowl, love and death in Vietnam.

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."

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

The lavish temple of the Cao Dai religion that includes Buddha, Mohammed, Joan of Arc, and Victor Hugo.

One of the largest caverns in the world has a maw large enough to stack cathedrals in.

Real bones which are said to have belonged to a Polish dragon.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

This man-made mound monument was built out of soil from all across the Polish empire.

Japanese island famous for poison gas and fluffy bunnies.

An exquisite tunnel of cascading flowers.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

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

An underground city of salt.

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

World's largest cave was only discovered in 1991, and now offers tours to the public.

The cruel trial of a 13-year-old boy inspired the creation of this now abandoned reformatory.