Hale Solar Laboratory

The Hale Solar Laboratory is a historic astronomical observatory in Pasadena, Los Angeles County, California, United States. Built in 1923, it was the laboratory of astronomer George Ellery Hale (1868-1938), a pioneering figure in the development of the discipline of astrophysics in the United States. The building, a distinctive blend of Mission Revival and Spanish Colonial Revival styles, was designated a National Historic Landmark in 1989.

Observatory data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).