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

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

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

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

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

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

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

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

These disused steel furnaces are now haunting ruins that may one day be a national park.

The last funhouse of its kind, where guests enter through the mouth of an 80-year-old blue whale.

The Paul Bunyan of the steel industry.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

A mythical chimera first sculpted in 1936 as a mix of the main animals of Texas livestock.

A trio of colossal statues spread across a Dallas neighborhood chart the emergence of a giant robot born of a locomotive and spilled gin.

A city park that sits on top of a freeway.

A serene temple with stunning stained glass hides in downtown Dallas.

This downtown Dallas art installation is always on the lookout.

A symbol of Texas pride.

This sculpture of a bowler hat is complemented by a matching umbrella a few blocks away.

The world's second-longest burning light bulb.