Located in Hemet, California, the Western Science Center is the first first museum in the United States to be certified as a LEED Platinum building. This stunning $40 million campus keeps a light environmental footprint by adapting to a challenging desert climate that can vary from freezing in the winter to over 100 degrees in the summer. Adjacent to Diamond Valley Lake, Western Science Center is home to a fascinating array of archaeological artifacts and Pleistocene Ice Age fossils that were unearthed at Diamond Valley Lake. This museum provides excellent facilities for the research, curation, and presentation of the nearly 1,000,000 fossil specimens discovered during the development of the Diamond Valley Lake.