A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

Japanese national treasure originally built in 593 CE.

Visible below the waves are memorials to the city's Gold Rush dead.

New Orleans' famous cemetery, located on the site of a former race track.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

A storybook European village in Berkeley.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

Stroll through retro Paris while shopping for old postcards and discarded doll heads.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

The most alien-looking place on Earth.

Learn about Iceland's hidden folk at this school dedicated to the study of elves.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

An eccentric inventor's castle home with its own indoor weather system.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Australian Lake set aglow by Noctiluca Scintillans.