A collection of 20th-century automata, penny arcade games, and musical contraptions.

Tiki luxury on Nob Hill.

Early prototype for Frank Lloyd Wright's Guggenheim.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

Only hotel where you can legally launder money.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

These subterranean storage areas hold emergency water reserves.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

Have a seat with the father of modern computing at this Manchester monument.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

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

The oldest Jewish cemetery in Europe survived Hitler's Germany.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

A preserved college lock-up that recalls a clubhouse approach to discipline.

A collection of artworks exclusively created by the mentally ill that was almost burned by Nazi culture police.

The fairy tale castle of the "fairy-tale king."

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

The footprint of a frustrated devil in Munich's Cathedral.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Banksy gives themself artistic license with this piece of London street art.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

London's smallest police station is barely the size of a phone booth.