An abandoned NSA listening post on Berlin's "Devil's Mountain."

Extraordinary sculpture garden created by an eccentric English poet.

Two waterfalls flow down the cliff faces decorated with rare natural basalt columns.

There is nothing like a religious festival celebrated with blow-up sledgehammers.

Mexico's astounding mummy museum with "the world's smallest mummy."

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

A quarter mile off the coastal tip of Maine you'll find the "Beloved Island" of Franklin Delano Roosevelt.

These powerful, if squat, Canadian waterfalls flow in different directions depending on the time of day.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.

A jewel of the Mexico city skyline now slowly crumbles after surviving an earthquake.

Neo-cave art on the macro scale.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

A gruesome memorial for those lost in this area during the Khmer Rouge genocide.

This impressive clifftop temple was once at the center of an international custody dispute.

Climb to the top of the world's largest seated bronze Buddha.

Five miles of underground river link lake to ocean.

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

During an annual Catholic feast in this tiny Spanish village, men dressed as devils leap over rows of babies to cleanse them of sin.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

Natural stone arches form a walkable "cathedral" at low tide, then disappear entirely when the water returns.

An abandoned hotel in the highlands of Bali is shrouded in stories of ghosts, curses, and corruption.

This tiny lake temple dedicated to a water goddess seems to float on the surface.

Where cemeteries are carved into the side of cliffs and infants are buried in the hollows of trees.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.