Riga is largest city in Baltic states situated on Latvias Baltic Sea coast on the river mouth of River Daugava, Riga is under UNESCO World Heritage Site becouse its historic centre and wonderful Art Nouveau buildings which are some of the best in the world, the Art Nouveau buildings are situated in central Riga where are whole streets in wonderfully decorative houses, one of the most beatiful Art Nouveau highlights is the facade of the School of Economics, the Three Brothers is medieval dwelling houses and the Latvan Museum of Architecture is located there, Riga Cathedral dominates the old town which is near river, Rigas Castle located on the banks of the river is residence of the President of Latvia and also home to several museums which some are Museum of Foreign Art and Museum of Latvian History, St. Peter church with its 123 metre tower is one of the best example of Gothic architecture, you can enyoj in handsome squares and streets which are decorated with intricate carvings and statues.