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

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

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

A shockingly detailed small scale recreation of the temples of Abu Simbel.

A retrofuturistic art installation in the Pittsburgh Airport.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

The childhood home of a Hollywood legend.

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