The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

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

There are eight natural springs around town, each with a slightly different taste.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A spiritual vortex among the red rocks in Sedona.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A propulsion engine testbed that paved the way for the Space Shuttle launch sits without recognition at this rocket center.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

A historic freight system that found the true gold rush is in tourism.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

What do a giraffe, an elephant, and reasonably priced steaks have in common? This roadside restaurant filled with exotic taxidermy.

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

Resting place of the Texas A&M canine mascots, who watch the game from the grave with their own miniature scoreboard.

The world's tallest statue of an American hero.

The petroleum industry brings you the joys of hydrocarbons and largest collection of antique oil rigs in the world.

A time-capsule monument reminding future generations of the importance of efficient and effective use of natural resources.

Decades of discarded bottle caps line this alleyway, a fixture of Texas A&M.

Belly up to the bar in Cowtown, don't forget to buy some boots.

The top of a giant mesa, just outside of Amarillo, appears to float in the sky above.

A decaying concrete oil tanker served as a disposal location for bootleg hootch.