This German bone house contains the remains of some 20,000 souls.

A triumphal steel arch on the side of a German mountain.

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

The first museum in the world devoted to sexual gadgetry.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

This museum explores the history of the city's public transportation. Its collection includes the world's oldest preserved electric trolley car.

Revitalization efforts converted a former U.S. military heliport into a sprawling urban park.

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

A rococo retro-futurist future-rustic vernacular between yesterday’s tomorrow and the future that never was.

This 19th-century church is now a popular roller rink.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

Tiki luxury on Nob Hill.

A classic American barn that was the home of a classic American television star.

The final resting place of a space program monolith.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

Medical and zoological curiosities for sale.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

An incarceration museum on the spot of possibly the oldest prison in England.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

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

Genitals, claws, and faces are served at this questionable Beijing eatery.

A progressive LGBTQ hub offers dancing, HIV testing, art, and more.

Inside this museum is an ongoing excavation of an ancient shipwreck.