A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

An encyclopedic collection of mammal penises.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

Seriously good slices of Sicilian pizza lurk at the back of the Bronx's oldest enclosed market.

Stuck in a bygone era, the oldest subterranean shopping street in Japan hides beneath the popular Asakusa district of Tokyo.

This small piece of Michigan is entirely surrounded by Ohio.

This dreamlike museum is filled with the works of an influential surrealist artist whose name you may have never heard.

These docile dragons are ideal inhabitants for the conservatory greenhouses.

These morbid carvings remind churchgoers of the inevitability of death.

A mysterious artist-run cabinet of curiosities and library.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

One part local history, 99 parts gruesome haunted house.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

A hotel and restaurant serving as the mecca of kitsch.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

This iconic tattoo shop has its own onsite museum with artifacts from the early history of modern body art.

A terrific purveyor of natural history objects and curios.