A new kind of theme park for adults off the Las Vegas Strip.

See the computer’s history revealed over the course of 20,000 years.

An entire town preserved as a historic landmark.

Inside this casino, visitors are treated to slot machines and a rare German Christmas pyramid.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Abandoned silver mine strewn with wrecked and twisted structures.

This spectacular track has run continuously since 1882.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

This abandoned amusement park was built on a site with a dark history.

The Cold War-era "underground Pentagon" is a sprawling subterranean hideaway for the Defense Department.

Bizarre Cavern.

The development and impact of electronic media showcased in a picturesque farmhouse in Maryland.

This former fire tower found new life as a communications hub complete with a scenic overlook.

This lookout tower built in the 1930s is now an in-demand cabin with what might be the best view of the Seneca State Forest.

This former fire tower is now a rustic observatory that offers amazing views of eagles, hawks, and the Appalachian Mountains.

Duluth mineral magnates built this charming art deco lodge to be their private clubhouse.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

A spooky defunct railroad tunnel now part of a sprawling trail.

This vast kitty-themed collection illustrates the history of human-cat interaction.

While knives are the main feature in this store, visitors will also find dinosaur bones and meteorites.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.