The largest prehistoric cemetery on the Balearic Islands dates back over 2,500 years.

This "flat geyser" bubbles up out of the ground periodically like a disappearing river.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

Birthplace of America's first documented serial killer.

The first ever diner included on the National Register of Historic Places is famous for its custard French toast.

Final resting place of one of the classic authors of horror literature.

This cemetery features modernist statues as strange as its name.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A contemporary art installation housed within a Gothic cathedral.

This 17th-century manor house provides a fascinating glimpse into old-world Mallorcan life.

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

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

A fabulously bizarre surrealist sculpture by the late artist Leonora Carrington.

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.

Twelve natural mummies are displayed in the crypt of this former monastery school.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

A church of bones, decorated with 40,000 human skeletons.

This spooky statue sits outside a famous Prague theater.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The hidden lair of an alchemist rediscovered in a 2002 flood.

Macabre astrological automaton clock dating to the late 1400s.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.