Gorky Park (officially the Central Park of Culture and Rest named after Maxim Gorky), was founded in 1928. The main part () along the Moskva river contains estrades, children's attractions (including the ''Observation Wheel'' water ponds with boats and water bicycles), dancing, tennis courts and other sports facilities. It borders the Neskuchny Garden (), the oldest park in Moscow and a former imperial residence, created as a result of the integration of three estates in the 18th century. The Garden features the Green Theater, one of the largest open amphitheaters in Europe, able to hold up to 15 thousand people. Several parks include a section known as a "Park of Culture and Rest", sometimes alongside a much wilder area (this includes parks such as Izmaylovsky, Fili and Sokolniki). Some parks are designated as Forest Parks (lesopark).