Rivers, Water Bodies, and Mts of EuropeOnline version AP EURO by Olivia Graham 1 Oder River 2 Elbe River 3 Rhine River 4 Danube River 5 Seine River 6 Volga River 7 Thames River 8 Tiber River 9 North Sea 10 English Channel 11 Baltic Sea 12 Adriatic Sea 13 Mediterranean Sea 14 Caspian Sea 15 Strait of Gibraltar 16 Black Sea 17 Strait of Dardanelles 18 Ural Mountains 19 Carpathians Mountains 20 Apennines Mountains 21 Alps Mountains 22 Pyrenees Mountains