By Matt Novak on Paleofuture, shared by Kelsey Campbell-Dollaghan to Gizmodo
The 1920s was a thrilling decade for aviation. Daredevils were just beginning to hop across the Atlantic, and at least one airline was even experimenting with in-flight entertainment. But if you wanted to tour the United States by air it was a pretty involved process. And this beautiful map from 1929 showed you how it was done.
Source: http://feeds.gawker.com/~r/gizmodo/full/~3/S9VQ9ffja2U/@kcampbelldollaghan