A retrofuturistic art installation in the Pittsburgh Airport.

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

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

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Quotes and poems etched on stone plaques are hidden along this waterfront walkway.

The 16-foot sculpture of a hand looks out from his perch on top of an art gallery.

New Zealand's only running funicular railway.

High winds can make this one scary landing.

These concrete crustaceans are actually public restrooms.

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

One of Auckland's oldest cemeteries was partially demolished during the construction of a major highway in the 1960s. 

Tubing through a cave lit with glowworms is a magical underground experience.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

The watery grave of an impractical idea.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

Thousands of turbines whir at at the origin of North American wind power.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

Inside the Wayne County airport is an amazing collection of lights and sounds.

The only road through the heart of Glacier National Park.