The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

"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.

Huge masonic hall in Philadelphia with lavishly themed rooms.

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

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.

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.

The god of wine stares out at passersby on this busy Pittsburgh thoroughfare.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

A pyramid commemorates the birthplace of James Buchanan, the 15th president of the United States

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

Frank Lloyd Wright built this suburban synagogue late in life, but it stands among his most iconic masterpieces.

A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

True to his word, George Swanson is buried in his white 1984 Corvette.

An American flag was erected for every day that passed during the Iranian Hostage Crisis.

A small granite block at this monument's base is the only part of Lincoln's Tomb outside of Illinois.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

A soon-to-be-forgotten roadside spectacle loaded with local lore.

A quirky collection of outsider art made from automobile parts.

This spot memorializes one of the greatest plays in NFL history, unless you happen to be a Raiders fan.

The home of possibly the least-loved U.S. president stands as a sort of unpopular Monticello.

The only statue of its kind to commemorate Washington's beginnings as an officer of the British Colonial Militia.