Manchester Central, (full name Manchester Central Convention Complex), formerly known as the GMEX centre and Manchester International Conference Centre (MICC), is an exhibition and conference centre built in and around the former Manchester Central Railway Station in Manchester, North West England. The building was awarded Grade I listed building status in 1963, but has since been downgraded to Grade II* status.
The complex started life as Manchester Central railway station, one of the city's main railway terminals. It was built between 1875 and 1880 and was finally closed to passengers on 5 May 1969. The station served as the terminus for Midland Railway express trains to London St Pancras. The station's large arched roof – a huge wrought-iron single-span arched roof, spanning 210 feet (64 m), 550 feet (168 m) long and 90 feet (27 m) high – was a noted piece of railway engineering and is said to be the widest unsupported iron arch in Britain after London St. Pancras. The former train shed now provides a large multi-purpose exhibition space.
In 1982 construction work undertaken by Alfred McAlpine commenced to convert the former railway station into an exhibition centre, and the G-Mex opened in 1986. G-Mex stood for the "Greater Manchester Exhibition Centre".In 2001 the Manchester International Convention Centre (MICC) was added to the complex, with an 804-seat auditorium plus breakout rooms and Great Northern Hall. During 2005 the company running the G-MEX and MICC was bought by Manchester City Council.