These 12th-century catacombs carved into a mountainside were a place of mysticism and Christian hermitages.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

This smiling statue memorializes local cartoonist Bob Montana and his legendary creation.

The final resting place of the man who played the Invisible Man.

Believed by many to be the oldest surviving public monument in the United States.

Pennsylvanian mass grave and possibly mass murder.

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

America's oldest archaeological site or a muddled case of wishful thinking.

A gas station and a state sign commemorating the most famous claims of extraterrestrial abduction.

Where Kevin Eastman and Peter Laird created their "heroes in a half shell" and founded Mirage Studios.

A colorful square marks the heart of the city's LGBTQ community.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Even Henry David Thoreau found this glacial pothole irresistible.

Come for the gun-toting hillbilly madman, stay for the ice-cream loving basketball bears.

The early 20th-century home features cutting-edge technology of the day, such as ammonia refrigeration and needle showers.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

Birthplace of America's first documented serial killer.

A stretch of New Hampshire lake water is the only ice runway in the lower 48 states that is FAA-approved.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

A cave dug by a man directed by ghosts to find pirate treasure.

One man’s hobby is another man’s world of metal wonders.