sadcatstarry Uncategorized September 27, 2018 1 Minute tilthat: TIL that the Hoover Dam is expected to be one of the last remaining visible structures from our species, and it contains a star map that if no other means were available, could be used to determine the exact date on which Hoover Dam was completed. via reddit.com Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Like Loading... Related Published by sadcatstarry yeet View all posts by sadcatstarry Published September 27, 2018