The first declared National Monument in the United States.

A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A one-of-a-kind collection of a unique medium.

The site of the climactic scene from the classic horror film is now a historic landmark.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

The seamy, underground secrets of Portland's criminal past.

This weird abode has inspired everything from the "House On Haunted Hil" to a robot hunter's pad.

Underground tunnels remain beneath this abandoned mental asylum.

After decades of neglect, a brutalist icon is getting new life as an eco-friendly hotel.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

One of America's oldest private membership libraries was long one of New Haven's best kept secrets.

It was founded by Ralph Nader to educate the public about an often-maligned area of law.

An overgrown and abandoned tuberculosis ward resides in the midst of a quaint modern neighborhood.

Inside a state forest, the forgotten remains of a Cold War defensive installation.

A vast collection of rare books, manuscripts & extraordinary objects illustrating the history of medicine.

The cave where two British judges hid in exile after sentencing the king to death.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

Home of Philip Johnson, one of the 20th century's most influential architects.