Florida castle built with aluminum printing plates.

The smallest post office in the United States is no bigger than a broom closet.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

Inside this museum resides a boot fit for a giant.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

A town honors its legacy of traditional American Indian pipe carving with one gigantic pipe.

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

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

17,400 lbs., 12 feet in diameter, and 29 years in the making.

Tirelessly maintained by a Wisconsin man named JFK.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

This geodesic gallery holds a collection of painted spheres that make traditional canvases look lazy by comparison.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

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

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

A fitting attraction for the corn capital of the world.

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

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

The Iowa state contender for largest pan in the world oddly only comes in second or so.