This might just be the TARDIS of bookstores.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

Mysterious rocks that ring musically when struck.

One of the world's largest model railroads is a mind-boggling achievement.

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

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

A layered tribute to the work of mosaicist Isaiah Zagar.

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

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

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

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

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

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

Yo, Adrian!

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

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

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

Eccentric concrete mansion and museum designed and built by hand from the inside out.

These 20-foot sculptures will help guide you from the local train station to the local sculpture garden.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

A unique sculpture park that specializes in the huge and bizarre.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

One of New Jersey's oldest surviving buildings still bears the mark of our former British overlords.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.