The diversity and make up of Riga's architecture gives the city its charm and splendor. Riga has the highest concentration of Art Nouveau buildings in the world and Riga's old town, listed as a UNESCO World Heritage site, adds to Riga's architectural magic.
World War 2 (WW2). Germans occupy Riga in July 1, 1941. Many Latvians greeted them as liberators since only a week before Russian NKVD carried out mass deportation of thousands of innocent Latvians and Jews to Siberia.