Elevated freight railway turned wildly successful urban park.

Memorializing an American tragedy of massive proportions.

The final resting place of the Hollywood star who came to a tragic end.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

This extraordinary Depression-era expenditure was modeled after a postcard of a Mediterranean hotel.

A pride of the state, this working museum crafts pottery mosaics in the style of Pennsylvania's earliest European settlers.

America’s smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

Alexander Hamilton’s creation caused quite a bit of controversy.

A daily replay of the experiment that proved the rotation of the Earth.

A local prank turned town icon.

This elaborate towering structure was once famed for its revolutionary height.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

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

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

Yo, Adrian!

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

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

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

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

A surreal statue honoring Prague's favorite literary son.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.