A local prank turned town icon.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

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

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

World's first "penitentiary," meant to be humane, drove men insane.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

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

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

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

This plaque marks a place where one of Hollywood’s most famous dancers got his start.

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.

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

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

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

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

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

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

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

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

The home, museum, and death site of Kodak's influential founder.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

This restored house is like a time capsule of the president's unconventional inauguration.