Features:

  1. The obvious impact crater in the south is Tycho, the dark areas are the maria (the "seas", but actually basalt plains from long-ago lava flows), and Mare Tranquillitatis (the Sea of Tranquility)---where Apollo 11 landed---is right of the center line at a mid-latitude.

  2. The maria (singular mare pronounced mahr-ray) are basalt plains from lava flows that ended circa 3 Gyr ago (see Wikipedia: Lunar mare: Ages).

    Mare means sea. Early telescopic observers, including Galileo (1564--1642)???, speculated that the dark, smoother areas were bodies of water and gave them water-body names. It was only in the early 19th century that it was finally established to everyone's satisfaction that the Moon had no bodies of water (see Wikipedia: Exploration of the Moon: Early history).

  3. The Leaping Moon Rabbit: