A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

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

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

This former fire tower found new life as a communications hub complete with a scenic overlook.

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

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

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

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

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

Spectacular mineral formations fill these caves, which have been used for everything from smoking meat to stashing illicit liquor.

In an odd geographic anomaly this city borders two different states on opposite sides of town.

This claimant to the title of "smallest church in the 48 states" doubles as an equally tiny, quasi-post office.

Forget Hollywood, one of the biggest stars in the world can be found in Roanoke, Virginia.

A well-preserved relic of the industrial age steel and iron works that dotted West Virginia.

The brainchild of Eleanor Roosevelt, her "Little Village" was a collectivist dream.

Near-constant high winds deform the trees on Spruce Knob, the highest point in West Virginia.

The actor best known for slapstick comedy is memorialized in his home town.

This university transit system is a 1970s vision of the future.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.