Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

The second oldest continuously operating bar in Louisiana.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

A modern English garden of eccentric beasts, follies, and oddities.

Roman ruins top white travertine terraces formed by ancient hot springs.

An ancient Egyptian temple in the middle of Madrid, Spain.

A display of magnificent stained glass windows is the first exhibit of its kind.

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

This electric green sulphur lake in New Zealand looks like a cartoonish radioactive dump site.

A Gothic cathedral created from volcanic rocks.

Dramatic sea stacks adorn the coast of this small village on the Adriatic coast.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

The United States Capitol's former columns still stand.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

The largest cemetery in the American Southeast is a hidden gem near the heart of Atlanta.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.