Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

Cannon designed to fire an atomic warhead.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

Where NASA's satellites and rovers phone home.

Quite simply the largest tree in the world (by volume).

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

The highest bridge in America was built for an almost unnervingly small amount of money.

Metal sculpture folk art lining the Kansas Highway.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

Lone survivor from Custer's Last Stand forever preserved.