A vintage video game wonderland in downtown Reykjavik.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

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

A daily replay of the experiment that proved the rotation of the Earth.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

In the early 1800s, surgery was also a show.

World's first "penitentiary," meant to be humane, drove men insane.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

A floating cat sanctuary on an Amsterdam canal.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

Cat art as far as the eye can see.

Collection dedicated to brands, packaging and advertising.

Artists and musicians now rule over this former rail station.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.