Once the main gateway to Tokyo, sneaking through this checkpoint was a capital offense in feudal times.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

A slab of sandstone covered with mysterious 1,000-year-old rock carvings from a vanished North American culture.

The only monument to name all of the passengers and crew who died on the RMS Titanic.

Celebrated in poem, this tiny hidden cemetery has a big and grisly history.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

The oldest surviving botanic garden in the United States.

This “living museum” at UCLA exhibits thousands of plant species from all over the world.

This Old Testament garden features 100 plants from biblical times.

An exquisite panometer representing Dresden as it was from 1695 to 1760.

Admire endangered plants in a verdant garden that looks straight out of a Monet painting.

An enchanting work of outsider art, full of whimsical sculptures and carvings.

A strange anthropomorphic stele with a mysterious inscription that has never been deciphered.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

A hacienda that features all things uniquely Yucatán.

A British plaque explains that a house was built using the spoils of the first international golf bet.

Anonymously sculpted and donated, these sculptures made from poetry books and pages are sprinkled around the city.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

This romantic, decaying 13th-century ruin on the edge of Sherwood Forest is reputedly one of England's most haunted places.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.