Given the question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Ashland (Henry Clay estate) - Ashland is the name of the plantation of the 19th-century Kentucky statesman Henry Clay located in Lexington Kentucky in the central Bluegrass region of the state. It is a registered National Historic Landmark. The Ashland Stakes a Thoroughbred horse race at Keeneland Race Course that has run annually since the race course first opened in 1936 was named for the historically important estate.
The answer is:
Building