A painfully obvious spy house sits right across the street from the Russian Embassy.

An enormous, inside-out glass globe built in 1935.

This dazzlingly turquoise mountain lake was created in the wake of a natural disaster.

Macabre museum devoted to historical Viennese murders.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

A 16th-century horror show built in a lovely Italian garden.

It’s said this crypt was the setting for the tragic finale of the Shakespeare play.

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

For centuries, this large Roman villa remained hidden thanks to the eruption that buried nearby Pompeii and Herculaneum.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

Hollywood's oldest hotel is the site of the first Academy Awards, the birthplace of Marilyn Monroe's career, and the home of Montgomery Clift's ghost.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

Visiting dignitaries and Hollywood stars once stayed at this 1920s hotel, alongside ghosts that are said to haunt its corridors.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

An unfinished tomb carved into a giant boulder in the Arabian Desert.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

Its tremendous toad is actually a five-story museum and viewing platform.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Part shoe store, part sociopolitical art gallery, part zoo.

A strange aquarium with stuffed fish, and almost no water for them to swim in.