The Legacy Trail, a 12-mile bicycle and pedestrian path that connects downtown Lexington to the Kentucky Horse Park will open Sunday. The trail, which was chosen by the community as a legacy project of the 2010 Alltech World Equestrian Games, travels through the Kentucky countryside with the Horse Park at one end and a new East End park — the Isaac Murphy Memorial Art Garden — at the other. However, by Sunday's opening, 8.5 miles of the $10 million trail will be completed. The portion runs from the Horse Park to the North Side YMCA.