The aggressively banal name of this underground fortress of bureaucracy does little to evoke its truly surreal existence.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

This tiny museum kept in a B&B laundry room holds the death mask of notorious bank robber Pretty Boy Floyd.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

Pennsylvania's own Roswell-style UFO mystery.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

This little museum in the town where zombies were born celebrates the living dead.

A museum commemorating the Donora Smog, which killed 20 people in October 1948 and sparked national outrage over air pollution.

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

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

These disused steel furnaces are now haunting ruins that may one day be a national park.

This picturesque stream was up until recently the site of a ten story mountain of slag and sewage.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

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

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

This public park was the site of the largest civilian disaster of the Civil War.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

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

Pittsburgh's literal underground railroad.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.