This Norman castle has been the scene of assassination plots, religious persecution, and Nazi conspiracies throughout its long history.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

Paths are maintained, but trees have taken over plots.

Oldest unrestored plantation house in America that is open to the public.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

A wedding chapel, vintage clothing shop, and bar all under one roof.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A crazy maze of a hostel, where every trap door and secret entrance brings you to a new wacky, wonderful room.

A mostly desolate bar on a remote island hosts hundreds of sailors for a few days each year.

Explore a uniquely pristine Borneo forest, now protected by former headhunters turned tour guides.

This Javanese-Hindu temple from the 15th century is unmissable for anyone with even a passing interest in erotic art.

A monster in the plant world, up to 10 feet tall and smelling of death.

Bright Indonesian villages painted in a rainbow of competing color schemes.

Hundreds of Buddhas in a re-discovered Indonesian temple.

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.

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

Three wildly colorful calderas top this otherworldly volcano chain.

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