This infamous prison has a store where you can buy goods crafted by incarcerated people.

A delightful park featuring homemade scale replicas of dinosaurs, tucked away in the Tennessee mountains.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

This pair of eccentric Ohio castles were built by a pair of brothers who wanted to bring a bit of class to the Ohio wilderness.

This edible park is open to any and all foragers.

Home on the Hillside, and home of the first breakfast cereal.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

Mine your own precious stones.

A staggering collection of photographs depicting medical, social, and historical change.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

What remains of the summer palace of King Kamehameha III.

Oldest unrestored plantation house in America that is open to the public.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

Settled in 1696, abandoned after the Revolutionary War.

This perfectly preserved Chinese medicine shop was untouched for decades before being reopened as a museum.

3/4-scale model of the White House in Atlanta, Georgia.

Jacksonville's highways rendered this century-old grammar school unusable.

An old California photo stand has been turned into a shrine to the cozy art of crochet.

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

For over 80 years, Mayan ruins stood proudly in a most unlikely location.