 Outside of Minneapolis, Hennepin County is part of the Three Rivers Park District, a park system containing 20 parks and 10 trails spanning the Twin Cities metro area.Numerous art institutions in Minneapolis make Hennepin County a national center for the arts.It contains some of the largest and most well-known centers for art in the country, including the Minneapolis Institute of Art, Walker Art Center, Weisman Art Museum, and the Minneapolis Sculpture Garden.