The massive 573-piece monorail transport base is part of the Space Unitron series and was released in 1994. It consists of a monorail station with two terminus and a train. There are also four miniatures and a ground vehicle.

This is the last and largest monorail lego has released, which explains its price tag of more than $800. This collection is also very flexible because it can be easily combined with others. Multiple base plates and an additional monorail track setup allow you to use it to connect two Unitron bases together.