Check out this beautiful drone video of an abandoned boat on Russia's Moscow River, compliments of contributor sokolkola. The Moskva, while not especially long, is one of the country's most important rivers. It connects Moscow to the Oka River, one of the main tributaries of the mighty Volga River. The Moscow River rises about 110 km (around 70 mi.) west of Moscow and then turns to the southeast after running through the center of the city, which came to eventually dominate the (older) downstream cities.