The Lick Observatory
The world's first permanent mountain-top observatory, the Lick Observatory, occupies the top of Mount Hamiton, the highest mountain in the San Francisco Bay Area. It was constructed in 1887 at the bequest of the wealthiest man in California, James Lick (among a large number of other things as stated in his will), and has continued to this day, under the control of the University of California System. Among the many discoveries here were six moons of Jupiter, as well as several extrasolar planets. A few dozen researchers and their families live on this observatory, connected to San Jose by a long sinuous 31km drive.
Mount Hamilton, San Jose, California