Outsider art meets paleontology at this roadside reptile repository.

A monument marks the location of the first successful steamboat demonstration.

Herbert Hoover's "Brown House" rural presidential retreat was a PR disaster amid the start of the Great Depression.

An enormous warehouse filled with parade floats collected from over 50 years of patriotic celebrations.

One of the last active volcanoes on the Eastern seaboard.

The world's largest fully steerable radio telescope.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

Take an otherworldly journey in a school dedicated to out-of-body experiences.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.