The city lies on the Gulf of Riga, at the mouth of the Daugava. Riga's territory covers 307.17 square kilometres (118.60 square miles) and lies between one and ten metres (3 feet 3 inches and 32 feet 10 inches) above sea level, on a flat and sandy plain.
Riga was founded in 1201 and is a former Hanseatic League member. Riga's historical centre is a UNESCO World Heritage Site, noted for its Art Nouveau/Jugendstil architecture and 19th century wooden architecture. Riga was the European Capital of Culture during 2014, along with Umeå in Sweden. Riga hosted the 2006 NATO Summit, the Eurovision Song Contest 2003, the 2006 IIHF Men's World Ice Hockey Championships and the 2013 World Women's Curling Championship. It is home to the European Union's office of European Regulators for Electronic Communications(BEREC).
In 2016, Riga received 2.3 million visitors. It is served by Riga International Airport, the largest and busiest airport in the Baltic states. Riga is a member of Eurocities, the Union of the Baltic Cities (UBC) and Union of Capitals of the European Union (UCEU).