The final resting place for the remains of 143 Habsburg royalty.

The anatomical-pathological collection of a man who changed surgery.

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

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

One of the world's largest collections of pathological specimens.

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

A surreal museum of extraordinary industrial objects.

A collection of abandoned typographic signs from Berlin and beyond.

Abandoned bridge hidden deep in the San Gabriel Mountains.

World War II-era Nazi compound nestled in the Santa Monica hills.

"The Hoppiest Place in the World" holds the world’s largest collection of bunny memorabilia and is a singular testament of a couple's devotion to all things Leporidae.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

Home to secret Eastern Bloc spy equipment and the largest stretch of the original Berlin Wall outside of Germany.

Dioramas and animatronics lead you through the story of Bhagavad-gita, the Indian literary classic.

Suburban observatory was personal lab of the father of modern astrophysics.

One of the world's largest collections of rare and magnificent bird specimens.

Historic marionette theater features thousands of handmade puppets and free cups of ice cream.

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

A Hungarian pharmacy museum with a box full of mummy powder.

A fake Transylvanian castle houses a cathedral of antlers.