The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

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

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

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

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

Yo, Adrian!

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

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

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

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

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

A rare view of a preserved Victorian science museum.

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.

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

A layered tribute to the work of mosaicist Isaiah Zagar.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Caves famous for the dragon-slaying saint who lived there.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

Winter weather reveals a large Italian marble crucifix drowned beneath Lake Michigan.

A mixture of strange symbols, ciphers, words and cryptograms carved in 1876 remain unsolved to this day.

Inside Crosswicks Creek Park resides an estate chronicling 200 years of history.

The first neighborhood to implement the Garden City model in its suburban planning.