An experimental, automotive replica of Stonehenge.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

A unique blue and yellow phone booth in America's "Little Sweden."

America's largest man-made forest was planted in an effort to bring back the past.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Elvis's own personal tropical hideaway.

A bizarre house filled with an astounding array of collections.

This monument to the victims of a tragic explosion is said to turn and look at passing cars.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.

A natural formation that resembles a camel resting in the New Mexico desert.

Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

A multi-storied adobe complex has been inhabited for more than a thousand years.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This recently restored timepiece has stood all around Kansas City.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

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

A cemetery housing wild west legends in South Dakota.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

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

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

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.