An abandoned stretch of highway, deteriorating next to the operational one.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A rare view of a preserved Victorian science museum.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

Where America's first doomsday cult awaited the end of the world.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

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.

A layered tribute to the work of mosaicist Isaiah Zagar.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

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

World's first "penitentiary," meant to be humane, drove men insane.

These commemorative stones honor a young woman born in captivity.

This magnificent Japanese garden provides a moment of Zen in rural Vermont.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

From horses to stainless-steel trucks, this iconic Providence burger wagon is one of the oldest mobile diners in the country.

The first ever diner included on the National Register of Historic Places is famous for its custard French toast.

Like stepping into a spooky fairy-tale, this shop carries the dark ideas of artists and other makers.

This tower commemorates the spot where George Washington hoisted the Grand Union flag.

Once the largest public hospital for the mentally ill was also surrounded by controversy.