Dantooine
Dantooine (Dan-too-een) was mentioned only once in the Star Wars films. In A New Hope, Princess Leia tries to fool Grand Moff Tarkin into believing that the Rebel base is located there. Tarkin replies that Dantooine is "too remote" to use the Death Star on (the deciding factor here seems to be a political and social impact rather than military necessity). Eventually, the Empire finds the remains of a Rebel base on Dantooine, but it was deserted.
What we know about Dantooine comes from various spin-off novels and media based on the films known as the Expanded Universe. It is a pleasant world of grasslands, rivers and lakes. It hosts a small population spread amongst single-family settlements and small communities with large land holdings. Native creatures include the kath hound, the iriaz, the fabool and the sentient Dantari people. Dantooine is the opposite of its counterpart, Tatooine, because the former is a grassland with rivers and lakes, while the latter is almost completely covered by desert.
Dantooine was one of the subject worlds of the Infinite Empire; a Star Map containing data about the Star Forge could be found in an underground structure there. Dantooine also boasts the complex in which the ancient Jedi Knights carried on mysterious cloning experiments.