These hooded graves are the only of their kind in the United States.

Inside the Wayne County airport is an amazing collection of lights and sounds.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

A smaller model of the Da Vinci sculpture that took 500 years to come to life.

A tribute to those that perished during the American Revolution.

A former plant in one of the hubs of U.S. steelmaking has been turned into this museum celebrating the history of American industry.

Designed by Horace Trumbauer in 1893, this Gothic-style castle is now a home for academics.

Beautiful views of the surrounding hills and birds of prey can be found at this sanctuary.

One of the first commercially successful anthracite-powered iron-making operations in North America.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

On the Hudson resides one of the largest clocks in the world.

Marie told fortunes from her small stand on the Boardwalk for decades, including to a young Bruce Springsteen who would busk outside her booth.

The humble field where the first Major League Baseball game was played.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

A failed piece of Orientalism has become the proud symbol of a community.

Mural made of 100,000 pieces of hand blown glass, and one of the largest glass murals in the US.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

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

This forgotten building was one of the few Philadelphia-area breweries to survive Prohibition.