Trantor

Capital of the first galactic empire.

Terminus

Originally uninhabited, it becomes home to the Foundation.

Anacreon

A newly independent kingdom that shuns the religious control of the Foundation. However, Salvor Hardin manages to gain control when Anacreon tries to attack Terminus.

The Time Vault

The place Hari Seldon delivers his messages.

The Encyclopedia

The Foundation writes an encyclopedia with the purpose of building up enough information to help future generations succeed in shaping the future.

Korell

The capital of the Republic of Korell. Sutt sends Hobert Mallow to Korell to find out if they have nuclear weapons.

Askone

Askone is another galactic planet that shuns the Foundation's policy of religous control. It is not until Limar Ponyets sells Pherl some nuclear devices that the Foundation manages to conquer the planet.

The Old Imperial Cruiser

Weinis finds an Old Imperial Cruiser with the power to destroy a planet...