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

These lush botanical gardens employ the most purrfect pest control force.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

A daily replay of the experiment that proved the rotation of the Earth.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

Once on display alongside a giant Gumby, it’s as tall as a nine-story building when fully extended.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

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

This elaborate towering structure was once famed for its revolutionary height.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

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

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

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

Yo, Adrian!

A failed piece of Orientalism has become the proud symbol of a community.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

The oldest farmer's market in America is so ancient it was approved by the King of England.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

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

The first American department store, and home to the largest operating musical instrument in the world.