Dark City Treno, also known as Treno; the City of Nobles, is an economically polarized city in the eastern part of the Mist Continent on Gaia. Treno has no existent middle class; instead, all of its inhabitants are either extremely wealthy or extremely poor. The rich nobles live down on the waterfront, while the poor live up in the slums around the city. Treno is known as the Dark City due to the perpetual state of darkness in which it remains.

Standing on the Forgotten Continent, it is an ancient structure that holds Terran technology and history and information about Terra. An anti-magic field prevents visitors from casting magic inside the structure.

Conde Petie is the city of the dwarven race located on the Outer Continent. The city also doubles as a border gate to a mountain path that leads to the Iifa Tree and Madain Sari, the ancient city of the Summoner race.

Ipsen's Castle is a location on the Forgotten Continent. The building itself, inside and outside, is an architectural marvel, much like M.C. Escher's drawing "Relativity". Many rooms are upside down and in one room the visitor has to slide up a pole. While in Ipsen's Castle, weapons will do more damage the lower their attack power is. Weak weapons are sold by a local Moogle.