Medical and zoological curiosities for sale.

America's most famous piece of self-built architecture.

Resting place of Hollywood's immortals is also site of summer film screenings.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

Ride the subways of yesteryear.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

Rusting dinosaurs frolic at the entrance to this roadside "snake sanctuary."

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

A series of five defunct panopticon prisons in Cuba.

This former industrial site has transformed into a community sculpture garden that hosts monthly Full Moon parties.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A house built from trash known as the poor man's Hearst Castle.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.