A museum dedicated to the dead and the tools used to usher them into the afterlife.

This shallow cave got its name from copious amount of human bones found inside.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

This sprawling bookstore spans four floors and has more than a million books in stock.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

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

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

A suspended garden, now gone, once hung in the middle of this abandoned church.

An abandoned relic of the city's failed experiment with below ground transit.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

An abandoned asylum incorporated into a college campus.

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

This humble star-gazing center touts itself as the "Birthplace of American Astronomy."

What is it about mushrooms that makes people wish they lived inside of them?

An art deco ice cream shop covered in vintage train station tiles.

The inventor of the iconic Pringles can was so proud of his invention he was buried in one.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

The longest navigable underground river in the United States is home to countless blind and albino animals.