The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

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

Hundreds of protractors affixed to surfaces all over the city.

A beautiful oddities shop crammed with strange and morbid curiosities.

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

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

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

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

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

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

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

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.

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

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

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

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

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