A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

Dr Barnes' $25 billion private collection of art and arboretum.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

A park full of outsider art, created by college students studying outsider art.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Mysterious rocks that ring musically when struck.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.