An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

The oldest university museum west of the Mississippi retains its 19th century feel.

This dramatic rail curve was once the target of a failed Nazi attack.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

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.

An otherwise quiet campground becomes a bustling medieval town for two weeks every year.

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

A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

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.

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

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

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

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

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

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

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

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

There aren't too many operational funiculars around, but Pittsburgh has two!

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.