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

Alexander Hamilton’s creation caused quite a bit of controversy.

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

A beautiful Victorian-era cemetery, complete with a miniature village.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

An enormous, inside-out glass globe built in 1935.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The ruined remains of a coal mining ghost town are hidden within the woods.

According to local myth this cemetery is half evil spirits, half good—split down the middle.

Intricate storybook scenes are tucked inside these shadow boxes, which are tucked inside a library in the Pocono Mountains.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

America's first serial killer rests in anonymity.

This jail which was in service for over a century is now open for curious visitors.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

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

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

This recreation of a 19th-century dime museum is full of oddities.

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

Pennsylvanian mass grave and possibly mass murder.

A beautiful oddities shop crammed with strange and morbid curiosities.