Opened in 1986, the Queensland Museum, (Stage Three), was connected to the Art Gallery by a covered walkway and to the Performing Arts Complex by a footbridge over Melbourne Street. The entrance on the Melbourne Street side of the building was accessed from street level and the Melbourne Street footbridge. Built over the Stage One carpark, the six-level Museum building had four floors open to the public, with the two top levels dedicated to offices, laboratories, library and artefact storage. The first floor was designed for a variety of uses, including lecture halls, back of house, preparatory area and workshops. Levels 2 to 4 showcased collections in galleries situated on either side of a central circulation core comprising walkways, stairs, lifts and escalators. The outdoor area contained a geological garden on Grey Street side (in 2014 the Energex Playasaurus Place). Stage Four included the State Library and adjacent Fountain restaurant and auditorium building (now The Edge) completed in 1988.