The remnants of an early automobile route across shifting sand dunes can still be found in the deserts of Southern California.

Semi-recognized center of the world, with many oddities.

The first permanent memorial to a unique secret weapon of World War II.

A mysterious "wedding cake" castle in the middle of the urban desert.

The unusual burial monument of Arizona's first governor.

The historic “pink house on the hill” is an architectural gem that now serves as a center for water conservation.

This vintage animatronics show is the Vegas version of a walk through the woods.

Nevada's largest cactus collection stands outside a candy mogul's small factory.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

After the musical legend's death, his memorial was mysteriously graffitied in gold.

Sleepy Minneapolis block beats Guinness Record for most churches on one city block.

This old residential building was once the largest flour mill in the world.

The remains of a failed canal can be found in several towns near Lake St. Clair and is known historically as "Mason's Folly."

A Michigan farm has hosted the fierce competition since 1974.

A tunnel with windows, so you don't miss out on the impressive views.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Surrounded by a hundred mile radius of billboards, Little America is a roadside attraction whose primary appeal is hospitality.

The first declared National Monument in the United States.

Ever wanted to can Spam?

This massive roadside mascot was the first version of the giant to illustrate his butt.

A roadside collection of over-sized iron creations that are a bit more macabre than most.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.