An unassuming 13-acre park is home to over 12,000 roses.

An office built to look like a giant basket.

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

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

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

The only statue of its kind to commemorate Washington's beginnings as an officer of the British Colonial Militia.

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

Where the oil industry began.

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

A quirky collection of outsider art made from automobile parts.

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.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

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

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

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 headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

Walk through the history of American pop culture.

Wedged between two sets of row houses is an awkwardly located family graveyard.

A remarkable time capsule of American manufacturing deep in Maryland coal country.