Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Tucked in the back of this amazing antique store is an important piece of medical history.

Sniff the Titan Arum's rotting flesh.

A crumbling hospital from the 1850s on Roosevelt Island.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

One of only two commuter aerial tramways in the United States.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

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

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

This church in Pittsburgh is home to the largest collection of religious relics in North America.