Riga, the capital of Latvia, is situated on the Baltic Sea coast on the mouth of the River Daugava, at 56°58′N 24°8′E / 56.967°N 24.133°E. Riga is the largest city in the Baltic states. The Historic Centre of Riga has been declared a UNESCO World Heritage Site, and the city is particularly notable for its extensive Art Nouveau (Jugendstil) architecture, comparable in significance only with Vienna, Saint Petersburg and Barcelona.
The modern founding of Riga is regarded by historians to have begun with the arrival in Latvia of German traders, mercenaries and religious crusaders in the second half of the 12th century, attracted by a sparsely populated region, potential new markets and by the missionary opportunities to convert the local population to Christianity. German merchants established an outpost for trading with the Balts near the Liv settlement at Riga in 1158. The Augustinian monk Meinhard built a monastery there circa 1190.