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

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

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

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

A collection of outdoor art by renowned muralist Robert Dafford depicts the history of a flooded city.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

This winding road of 318 curves is a must-visit for (careful) motorcycle and sports car enthusiasts.

Enormous lake at the bottom of a unique cave system.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

The third tallest lighthouse in America once guided author Stephen Crane to safety.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

A museum dedicated to the alleged Roswell Incident.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

A massive volcanic plug is now a protected area that hosts a number of bird species.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

This lonesome Monterey cypress has survived centuries of wind, salt, and at least one attempt at arson.

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

A trash dump made beautiful by nature's power.

Traversing these canyons, visitors can take in stunning views and glimpses of the region's history.

Explore 10 acres of environmental sculptures.

The quirky salon doubles as a retro museum run by the world's leading "hairstorian."

A fake town founded by Western movie stars is now becoming a hip desert community.

On a barren hillside in the Yucca Valley, the recently restored Desert Christ Park has attracted pilgrims and kitsch hunters for over 50 years.