Yo, Adrian!

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

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

An Irish Memorial commemorating those who perished due to potato blight.

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

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

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

A layered tribute to the work of mosaicist Isaiah Zagar.

In the early 1800s, surgery was also a show.

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

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.

Huge masonic hall in Philadelphia with lavishly themed rooms.

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

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

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

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

The “American Gothic" artist's largest works hang in an Iowa State University library.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

This zombie-themed restaurant stands out in the heart of corn country.

The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

A small burial plot formerly stranded in the middle of a road.

Lured here by the promise of tens of thousands in gold, Jesse James started a quintessentially American trend of robbing trains in-motion.