Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

The longest living non-clonal organisms on Earth.

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

One of the oldest living oak trees in the Southeast.

First established in 1696, this settlement was abandoned after the Revolutionary War.

4,000 monkeys used for medical testing on an island off of South Carolina.