North America’s largest collection of horological devices and home to a colossal clock with a dizzying array of features.

An outlandish shoe shaped house built by an eccentric millionaire.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

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

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

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

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

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

A glittering Thai Buddhist temple in suburban Pennsylvania.

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

The abandoned coal loading dock is a canvas for unsanctioned art.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

Old neon signs from the City of Brotherly Love provide a snapshot of the city’s evolution.

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

Once a thriving business district, this former shopping area is now an urban ghost town in the heart of the city.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

This English-inspired Maryland garden is home to acres of opulent plant life including bushes shaped into an entire fox hunt.

The towering figures were created from the cemetery's fallen old-growth trees.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

More than 500 unique and specially designed cases collected by D.C.'s "Harmonica Case Man."

A historic neighborhood church is reborn as a psychedelic arts collective.

This lovely pocket park is one of the most under appreciated in D.C.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

Seemingly unremarkable items like empty sushi trays, chef hats, and freshness stickers are being preserved so future generations can look back on this beloved cultural import.