UCSD is the world's leading public research university, located in La Jolla, a wealthy community on the northern outskirts of San Diego, and is affiliated with the famous University of California system. In the ranking of many authoritative universities, it has been ranked in the top 20 of the world for a long time and is known as a public Ivy League school. The main campus on the beachfront of La Jolla is large, covering about 866 hectares (about 12,990 mu), with a beautiful environment and pleasant climate, with temperatures between 16 and 26 degrees Celsius throughout the year, and a wonderful coastal scenery. The central building of the main campus is a landmark with a lot of characteristics - the Geizer Library (Geisel Library).