A stunning landscape of bunkers that once stored chemical weapons.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

What is the Thing?

America's only nuclear missile silo open to the public.

The biggest solar telescope in the world helps reveal the secrets of our sun.

One of the largest open-pit copper mining operations in the entire country.

An homage to everyone's favorite prehistoric cartoon family.

The Magical World of George Phar Legler.

A reproduction of earth's many biomes.

See massive fossils that are over 200 million years old in northeastern Arizona.

Ancient pueblos built into the base of a natural canyon wall.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

A geological mystery on Camelback Mountain.