The Earth is a vastly fascinating place! You may think of rocks and trees and animals as familiar things, but they are often as unknown and otherworldly as specimens from Mars.
Here’s an example of a cave formation in Wind Cave National Park known as “boxwork”. Could be the surface of a distant planet, don’t you think?
Could these be aerial photos of alien landscapes? Or the skins and bodies of alien life forms?
Does this structure look like something you’ve seen before?
The startling discovery of unfamiliar living things is possible in your own back yard. Go take a look!
scillagrace 