A battle between nature and architecture in the Cambodian jungle.

A Mars simulation in the southern Utah desert.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

A true roadside icon standing on the same plains that the herds once roamed.

The Wonder Road aka Doobie Lane, a mile-long strip of dirt road filled with folk art.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

The closest thing to Mars on Earth.

Fire meets ice at the southernmost volcano on Earth.

Natural time capsule containing an alien ecosystem.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

Rippling sand dunes frozen in the Arizona rock.

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

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

A reproduction of earth's many biomes.

The world's largest military aircraft cemetery.

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

Where NASA's satellites and rovers phone home.

Abandoned anti-ballistic missile base.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Abandoned Air Force base that has fallen into disrepair.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

A ring of creosote bushes that are estimated to be 11,700 years old.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.