Though the original building has been demolished, these massive bronze doors were saved.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

A library of rare occult books in Los Angeles.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

World's largest collection of serial killer artwork and other macabre exhibits.

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

This arid landscape was once a lush wetland. Today, it's a paleontological site filled with fossilized mammoths, sabertooth cats, and more.

Decades' worth of lost and forgotten objects make up the collection of this tantalizingly odd little museum.

Wayne Newton's sprawling estate is now open for visitors to catch a glimpse of his "heart and soul."

This vintage animatronics show is the Vegas version of a walk through the woods.

Back in 1952, you could get a mushroom cloud chaser with your atomic cocktail.

A collection of haunted objects and macabre oddities under one roof.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

A charming "tea atelier" hidden away in Greenpoint, Brooklyn.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

The best way to get a sneak peek at the movies.

Cryptic messages embedded in the New York City sidewalk.

Unlock the secrets of the conjuring arts.

The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

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

Dramatic river bend surrounds a natural red-rocked pedestal.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.