A piece of baseball history is preserved in a Pittsburgh parking lot.

Hundreds of protractors affixed to surfaces all over the city.

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

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

With 3,000 bikes on display, the world's largest bicycle museum includes some famous rarities.

One Pittsburgh musician's decades-in-the-making memorabilia collection is on display at this rock-n-roll curio shop.

Despite being stolen multiple times, this civic electrician's street corner Snoopy won't be stopped.

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

The last street in Pittsburgh that's paved with wood.

This secluded walking trail is a hidden gem of a Pittsburgh park.

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

Once used to screen films for theater owners to rent, this historic building is now a start up hub.

This Old Testament garden features 100 plants from biblical times.

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

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

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

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.

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

This shop filled with oddities and knick-knacks is named for a 19th-century charlatan.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

This shrine dedicated to the Virgin Mary is also a tribute from a mother to her fallen son.

Pittsburgh's literal underground railroad.

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