A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

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

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

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

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

Yo, Adrian!

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

The first American department store, and home to the largest operating musical instrument in the world.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

Dr Barnes' $25 billion private collection of art and arboretum.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

Huge masonic hall in Philadelphia with lavishly themed rooms.

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

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

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

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

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.