Dover International Speedway

Dover Motor Speedway is a race track in Dover, Delaware. The track has hosted at least one NASCAR Cup Series race each year since 1969, including two per year from 1971 to 2020. In addition to NASCAR, the track also hosted USAC and the Indy Racing League. The track features one layout, a 1.03 mi concrete oval, with 24° banking in the turns and 9° banking on the straights. The speedway is owned and operated by Speedway Motorsports.

The track, nicknamed "The Monster Mile", was built in 1969 by Melvin Joseph of Melvin L. Joseph Construction Company, Inc., with an asphalt surface, but was replaced with concrete in 1995. Six years later, in 2001, the track had 135,000 seats, the largest sports venue in the mid-Atlantic region.

Source: Wikipedia