A giant ball made from pieces of an old Jeep.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

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

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

A young woman's senseless murder led to the controversial psychological theory of the "bystander effect."

Rusted cars, trucks, and buses form a fascinating collection of Soviet-era machinery.

According to legend, Bob Dylan sneaks in twice a year to eat dinner with Jack.

A Jenga-style cylindrical tower of books that appears to go on forever.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

America's only nuclear missile silo open to the public.

The mortal remains of a Russian prince, priest and paranormal investigator who came to America in 1792.

A jukebox headstone marks the grave of the Cleveland disc jockey credited with coining the term “rock 'n' roll."

Ride in 1960s style on the private luxury train Marshal Josip Tito used to travel around Yugoslavia.

Two adjoining collections of 19th-20th century physics apparatuses and instruments.

This nearly invisible wire transforms much of the city into one big, symbolic home on the holy day.

Believe It or Not, Ripley once called this chiseled mountainside “New York’s Mount Rushmore”.

A room hidden behind a swinging shelf in the children's section.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

America's first serial killer rests in anonymity.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.