This iconic 1958 tower welcomes air travelers to Tucson with neon-lit letters and architectural style.

The "lovely red Vega" of the legendary record-settling pilot.

America's only nuclear missile silo open to the public.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

Historic funicular railway, believed to be the shortest railroad in the world.

The Lowcountry color with the power to stop evil from entering a home.

This is one really big nut.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

A museum dedicated to the alleged Roswell Incident.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

Boise State's stadium was the first non-green football field in the world.

This little blue house pokes out over the campus of UC San Diego, seven stories high.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Sports history, made in the Arroyo Seco.

This blowhole is supposedly caused by a trapped monster.

The arch that celebrated the completion of the Lincoln and Victory highways.

A museum dedicated to the history and exploration of both popular music and science fiction.

The U.S. Navy's last diesel-electric submarine rests half-submerged in the middle of Portland.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This giant temperature attraction created some giant electric bills.