A retrofuturistic art installation in the Pittsburgh Airport.

A preserved 18th century homestead in Western Pennsylvania marks the spot where the Whiskey Rebellion began.

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

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

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

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

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

The Master of Magnetism dominates the walls of a scrap metal yard to keep graffiti artists at bay.

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

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

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

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

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

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

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

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

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

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

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

This riverside restaurant delivers elegant dining in a historic 1901 train depot. 

A museum and shop on Bourbon Street located in the French Quarter.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

This float factory takes the mask off of Mardi Gras and lets visitors see where the magic happens.

This knobby, drooping New Orleans oak is a favorite place both for climbing and for meeting giraffes.