An antique curios dealer and hybrid taxidermist.

Miles of man-made caves and tunnels are currently used for cultivating mushrooms.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

This once-derelict building is now one of the most beautiful bookstores in the world.

The world's only and thus largest collection of its kind celebrates everyday wonder through simple umbrella sheaths.

Explore the dark underground corridors of this graffiti-covered former military fortification.

Its unique collection details the history of the state's svelte railroads.

The 100-year-old public collection of a New Hampshire dentist that contains taxidermy, Native American artifacts, and a pair of mummy hands.

This 1,700-pound edible sculpture is way better than your average chocolate mousse.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

An odd museum dedicated to French fakes.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

A retired subway car stands alone in a field in the middle of Queens.

Home to the abandoned Tioronda Hat Works Factory, this park is a combination of woodlands and marshlands.

A Beaux-Arts triumph set to become Ford's innovation campus

Collective made up of artists, musicians, and activists.

Detroit housing collective working to create an "environment for revolutionary change."

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

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

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

An ever-evolving wall of graffiti art off East Liberty Street.