Atlantis (Stargate)

In the science fiction television series Stargate Atlantis, the spin-off of Stargate SG-1, Atlantis is an Ancient City Ship, both of which are part of the Stargate science fiction setting. It is based on, and serves to explain, the Greek myth of the Lost City of Atlantis.

On the popular television series, the City of Atlantis resides on a planet located in the Pegasus galaxy, and was built by the Ancients and later abandoned. SG-1's seventh season was spent in search of the Lost City, and culminated in the Atlantis Expedition when its location was found. In the series premiere of Atlantis, this team from Earth used the Stargate to travel to the City in search of knowledge and possible contact with its builders, 10,000 years after it was abandoned.

This team of humans today makes up the bulk of Atlantis' urban inhabitants, and the city now acts as the secure main base for Stargate operations in the Pegasus Galaxy. With only a few exceptions, any episode of Stargate Atlantis begins and ends at Atlantis.