A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

The mortal remains of a Russian prince, priest and paranormal investigator who came to America in 1792.

A living maritime paradox still floats in the same lake where it was built and resurrected... or was it?

Trade in that pesky human soul for cold-hard circuits.

The city is full of whimsical portals to another world.

An ever-evolving wall of graffiti art off East Liberty Street.

Where the oil industry began.

Steepest flood safety railway in the entire world.

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

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

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

Could it have picked a better place to land?

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

This Old Testament garden features 100 plants from biblical times.

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

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

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

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

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.

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