The effects of geopolitics on travel - South African Airways flight routes during apartheid era (album of other examples in comments) [580x646]
September 30, 1935: The Hoover Dam was dedicated.
This map is impressive in photos, but the colors really pop in person!
Map: Eddy, Gerald A. Panoramic perspective of the area adjacent to Hoover Dam as it will appear when dam is completed. Chicago, Ill.: Union Pacific System, c1931.
Asa Smith. Celestial Illustrations from Smith’s Illustrated Astronomy. 1851.
Wood engravings with hand highlighting, written by the principal of Public School No. 12 in New York City with the goal “to present all the distinguishing principles in physical Astronomy with as few words as possible”.
15 Safest & 15 Most Dangerous US Counties (Natural Disasters) (OC) -Article in Comments- [1510 x 980]