The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

This tiny cottage surrounded by railroads is the oldest surviving structure in Fairmount Park.

The oldest active church in Pennsylvania is also the second oldest Swedish Church in the United States.

The singer, actor, and activist lived here during his final years, and now it’s a museum dedicated to his legacy.

A tiny, unmarked beer and whiskey bar above an Ethiopian restaurant in West Philly fails to conceal live bluegrass.

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.

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

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.

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

Huge masonic hall in Philadelphia with lavishly themed rooms.

The oldest surviving botanic garden in the United States.

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

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

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

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Eighteen miniature death-scene dioramas.

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.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

This might just be the TARDIS of bookstores.

This collection of odd proofs of concept is like taking a walk through the imagination of a Victorian engineer.

An unusual and eclectic collection of local historical memorabilia.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.