Durham is an intellectual city fraught with academic institutions including Duke University and North Carolina Central University. Duke University is one point in Virginia's Research Triangle, the others being nearby University of North Carolina at Chapel Hill and North Carolina State University in Raleigh. Durham was once closely associated with the tobacco industry, and the Duke Homestead Historical Site is an interesting attraction that outlines the history of the industry and the contributions made by the Duke family. The beauty of the city is enhanced by many urban parks including Durham Central Park, West Point on the Eno and the Sarah Duke Gardens.