Underneath this small church are 15,000 bones, arranged by an obsessive academic.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

The recovered bones of martyrs slaughtered during The Terror are on display in this church crypt.

Thousands of well-dressed mummies below a monastery.

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The humble horn finally finds a place in the sun.

The scene of the largest surrender of Confederate troops at the end of the American Civil War.

A bypass decorated with large wooden troll carvings.

The world's longest known cave system.

More than five miles of underground passageways.

Over thousands of years, this slot canyon was carved out of the bed of an ancient lake.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.

A theme park attraction designed to turn your children into LARPers.

This striking art museum holds an amazing series of curiosity cabinets.

Wisconsin's most celebrated export gets the royal treatment on I-94.

This cave holds a surprisingly colorful variety of geological oddities.

A bizarre house filled with an astounding array of collections.

Two dozen rescued bears roam (mostly) free at the largest bear ranch in the U.S.

The world’s largest Masonic temple was saved by the White Stripes.

The bones of an old zoo crumbling in the shadow of a new one.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

This freshwater spring fills with 10,000 gallons of water per minute.