A toxic ghost town sitting atop a massive coal fire.

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

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

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.

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

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

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