Tiki luxury on Nob Hill.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

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

A psychedelic labyrinth on the San Francisco bay.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

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

Dine on dumplings at the oldest dim sum restaurant in New York.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

A historic house left in "dramatic still life."

Preserved behind glass, the ruins of a medieval building used to store human remains.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

This pub boasts a curious history and may have inspired a Dickens character.

This London plaque marks the spot where David Bowie's famous alien made his debut.

The next-door homes of two very different musicians, George Frideric Handel and Jimi Hendrix.

The townhouse where the English poet created some of his most influential work has been preserved in tribute.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

The taxidermied remains of a once-great parrot.

This black cat was actually designed to ward off bad luck.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A quirky statue in Bermondsey made by 100 public participants with goggles, chisels, and mallets.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.