The hidden jewel of Disneyland: a members only playground for the Disney elite.

A building so large that it has its own weather.

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.

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

A Circus legend leaves an unexpected endowment.

Electrical pylon in the shape of Disney's beloved mouse.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

One of many gator theme parks, abandoned in the sugar fields of South Florida.

Town of spiritualists and mediums in Florida.

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

At 207 feet, one of the world's longest continuous escalators.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Jurassic Park—A Still Life.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

Established in 1925, Kiddie Park claims to be the oldest amusement park in the U.S. - a cozy little time warp nestled in a shady corner of the modern world.

Three hundred years of preserved Spanish colonial history in San Antonio.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

An alley covered with 20 years of bubble gum.

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

One part antique store, one part curiosities hodge-podge.

Turning night into day in Victorian-era Austin to thwart a serial killer.