This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

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

A rare view of a preserved Victorian science museum.

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

World's first "penitentiary," meant to be humane, drove men insane.

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

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

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

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

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

A layered tribute to the work of mosaicist Isaiah Zagar.

Century-old shop, specializing in Occult products.

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

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

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

Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Delicate Wurlitzers, creepy clowns, and The Noid all share space in this insane explosion of kitsch history.

The oldest surviving botanic garden in the United States.

An alternate history park where the Union Army loses the war... to dinosaurs.

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

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.