A prison-like structure guards the remains of a notorious Old West outlaw.

The wreckage of a crash that killed nine people still litters the Franklin Mountains.

This site honors the end of a 100-year boundary dispute between the United States and Mexico—all started by a river's shifting course.

Search for traces of the dinosaurs that roamed here more than 90 million years ago.

The house's confection-like decorations are the result of one man's painstaking work over decades.

Hollowed out cedar log tubs set in an ancient towering forest.

Often referred to as the largest spring in America.

A former department store turned into a quirky restaurant.

An Iowa town celebrates its heritage with the tallest working Dutch windmill in North America.

This curio museum seems like the type of place you might find a mogwai or a monkey's paw.

Built to replace a house destroyed by a hurricane, this home is made entirely of shipping containers.

St. Augustine's record-setting narrow street was designed to protect against pirates.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

Intertwined, interspecies trees which locals believe can grant boons to lovers.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

A tribute to Ponce de Leon's supposed quest for eternal youth.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

It's a pretty creepy lock-up.

An ever-growing collection of rare and strange objects owned by local Arkansas illusionist Maxwell Blade.

Everything in this miniature world was handmade from matches, paperclips, wires, tin cans, and other everyday objects.

An architect's childhood fantasy treehouse made real.

When ecosystems collide in the arid Southwest.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.