This mysterious hill seems to pull objects uphill.

If astronomy had a ghost, it would look like this observatory.

The longest navigable underground river in the United States is home to countless blind and albino animals.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.

This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."

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

A macabre tour of Hollywood’s deadly history.

A monthly street "service" of handmade puppets and live original puppets, whose devotees profess has the power to change lives.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

A library of rare occult books in Los Angeles.

One man's homage to the sun continues to grow like a glass fractal.

Medical and zoological curiosities for sale.

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

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

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

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

A collection of cafes and shops all crafted from recycled storage containers.

This museum offers an actual time machine back through Colorado's past.

Explore some of the most unique vehicles in history along with a cast of unsettling mannequins.

Curios, scientific antiques, oddities for sale.

This sidewalk tribute honors Colorado's great culinary creation.