Liberty Bell Park was an American race track in Northeast Philadelphia that held harness racing and Thoroughbred horse racing from 1963 until 1986. The site, northeast of the intersection of Knights and Woodhaven Roads, was derived from several farms and smaller farmettes. The harness track was a .625 miles (1.006 km) track, but when thoroughbred racing was made legal in 1968, a 1 mile (1.6 km) track was built using the homestretch and front of the harness track until Keystone Race Track (now Parx Casino and Racing) was built in 1974.