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.

One of the first intercontinental ballistic missile sites in the United States.

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

A fitting attraction for the corn capital of the world.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

The final resting place of the Hunkpapa Lakota leader Tatanka Iyotaka, commonly known by the English translation Sitting Bull.

A monument to the forgotten French explorers and their landmark expedition.

Colorful curls of hand-blown glass form a captivating tower in San Antonio's Central Library.

This replica of a 16th-century French settlement memorializes one of the earliest attempts at a European settlement in North America.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

A monument celebrating the idea of reaching inaccessible places.

The highway's southernmost spot is a beloved local attraction.

A historic presidential getaway on the continental United States' southernmost island.

A historic landmark and museum filled with curious objects representing the history of Key West.

Recently celebrating its 25th anniversary, the garden opened in September 1997 to celebrate the men and women who have had the greatest impact on Key West.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

This cathedral dedicated to Louis IX, sainted King of France, holds many secrets.

The world-record holder for the longest bridge stretching continuously over water.

The home and birthplace of Caroline Dormon, a naturalist, artist, and the "mother of the Kisatchie National Forest."

A taste of Middle Earth, in the middle of the Bayou City.