1928 Map of Discovery, Western Hemisphere

In 1927, famed American painter N. C. Wyeth completed a series of five murals for Hubbard Memorial Hall, the National Geographic Society's first formal library. The Map of Discovery: Western Hemisphere, published in January 1929, is one of those outstanding murals. It features Poseidon and a mermaid keeping watch over the oceans as well as the routes of explorers and dates of expeditions.