Nottingham is a city in central England’s Midlands region. It’s known for its role in the Robin Hood legend and for the hilltop Nottingham Castle Museum and Art Gallery, rebuilt many times since the medieval era. The city was the first in the East Midlands to be ranked as a sufficiency-level world city by the Globalization and World Cities Research Network. Nottingham has an award-winning public transport system, including the largest publicly owned bus network in England and is also served by Nottingham railway station and the modern Nottingham Express Transit tram system. It is also a major sporting city. The National Ice Centre, Holme Pierrepont National Watersports Centre, and Trent Bridge international cricket ground are all based in or around the city, which is also the home of two professional league football teams; the world's oldest professional league club Notts County, and Nottingham Forest, famously two-time winners of the UEFA European Cup. On 11 December 2015, Nottingham was named a "City of Literature" by UNESCO, joining Dublin, Edinburgh, Melbourne and Prague as one of only a handful in the world. The city is home to two universities - Nottingham Trent University and the University of Nottingham and also hosts a campus of the University of Law.