Hoover Dam star map floor center

Hoover Dam memorial star map floor, center area. The star map marks the position of the stars as seen from the site of the Hoover Dam on the day it was completed, so that future visitors would understand, even thousands of years in the future when English is no longer spoken and other historical cues are gone.

From Wikimedia Commons (Art Deco › Art Deco by country › Art Deco in the United States › Art Deco sculptures in the United States › Winged Figures of the Republic). By Jeremy Faludi. CC BY-SA 3.0.