Lexington is a city in Kentucky, United States that is the county seat of Fayette County. By population, it is the second-largest city in Kentucky and 59th-largest city in the United States. By land area, it is the country's 28th-largest city. The city is also known as "Horse Capital of the World". It is within the state's Bluegrass region. Notable locations in the city include the Kentucky Horse Park, The Red Mile and Keeneland race courses, Rupp Arena, Central Bank Center, Transylvania University, the University of Kentucky, Bluegrass Community and Technical College, and the National Thoroughbred Racing Association (NTRA) Headquarters.