The Hanover fairground (in German: Messegelände Hannover) is an exhibition area in the Mittelfeld district of Hanover, Germany. Featuring 496,000 m² (5.3 million sq.ft.) of covered indoor space, 58,000 m² (624,306 sq ft) of open-air space, 27 halls and pavilions and a convention centre with 35 function rooms, it is the largest exhibition ground in the world.
The area of the fairground originally was an aircraft works. After World War II, the British military government in Allied-occupied Germany wanted to hold a trade fair and sought for a good place, since Leipzig, the traditional fairground of Germany, was unavailable, being in the Soviet occupation zone. The hangars in Laatzen, south of Hanover, were deemed suitable for this purpose, and so the Hanover Fair, then named Exportmesse 1947 was first held in 1947 to promote the economic recovery in the Bizone. The concept proved to be successful, and so a permanent fairground was established, growing over the years.
The Hermesturm (Hermes Tower) is a tower built of two concrete tubes on the fairground. The building was constructed between 1956 and 1958. Its total height, including the antenna, is 88.8 m, an observation deck at 65 m can be reached with an elevator.
The fairground has been linked to the city's tramway network since 1949. The original terminus, called Messegelände, has been moved several times, the last time in 1982, when the line was upgraded to become part of the Hanover Stadtbahn, and is now situated at the entrance Nord 2, between halls 1 and 18. Service to the city centre is provided by the regular line 8 as well as the peak line 18. During the large fairs, like CeBIT or Hannover Messe, there is a special peak hour express service, denoted by the letter E, which only stops at the stations Hauptbahnhof, Kröpcke and Aegidientorplatz. By employing highly efficient dispatching methods, trains can run in intervals as little as 90 seconds, each train able up to carry as many as 700 passengers.