One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

This 19th-century island fort built to protect against an invasion by sea.

The historic villages and towns of Suffolk are filled with wonky wooden beam houses painted an unusual shade of pink. Unknown to many though, this sweet shade has a bloody history.

This small island declared independence from South Korea in the hopes of attracting tourists.

Three tiny islands in a Portsmouth pond are at the center of disputed land claims from a number of competing micronations.

The scene of the United Kingdom's most famous UFO incident, dubbed the "British Roswell."

A 550-square-meter micro-nation off the coast of Britain.

Provincetown's night owls flock to this 52-year-old pizza joint.

A tiny slice shop hides down an unmarked hallway in a Las Vegas casino.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

Stuck in a bygone era, the oldest subterranean shopping street in Japan hides beneath the popular Asakusa district of Tokyo.

An actual 1957 Cadillac De Ville, encased in 15 cubic yards of concrete.

A "miracle" that seems to produce more holy fistfights than holy revelations.

This reconstructed Norman castle is the world's most accurate, from location to livestock.

A historic observatory precariously perched at the "Top of Europe."

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

The world's oldest optical museum is an odd collection where the exhibits look at you.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

This exhibit is one of the largest and most well-preserved collections of Jurassic-era trackways in the United States.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

This desert oddity hides in plain sight thanks to a cartographic error and a desert explorer with a punny sense of humor.

The imprints of astronaut Charles Duke’s moon boots live on at Myrtle Beach’s official South Carolina Hall of Fame.

Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.