A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.

A beautiful oddities shop crammed with strange and morbid curiosities.

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

Once used to screen films for theater owners to rent, this historic building is now a start up hub.

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

This picturesque stream was up until recently the site of a ten story mountain of slag and sewage.

The last street in Pittsburgh that's paved with wood.

The art studio of an early 20th-century painter, hidden amid the Great Smoky Mountains.

Mile-long cave system near Great Smoky Mountains.

An abandoned town is hidden in Great Smoky Mountains National Park.

In one of America’s oldest mountain ranges, a long-awaited section of a scenic highway is now open to the public.

One man’s religious convictions led him to build this stone castle meant to withstand an apocalypse.

Former abode of notable poet, complete with literary references and stories of ghosts.

The gravestones in this historic cemetery are carved with mysterious faces.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

America's oldest archaeological site or a muddled case of wishful thinking.

One New Hampshire alleyway has become home to a public gallery of feline art.

This riverfront statue honors the inventor of the first video games ever sold.

During the Industrial Revolution this “Temple of Invention” was full of intricate miniature machines and gadgets.

Hundreds of notes give thanks to the patron saint of lost causes.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.