Drive up Mount Hamilton just east of San Jose, California, and immerse yourself in stunning views and rich history. The 19-mile Mount Hamilton Road is loved by cyclists and motorcyclists for its long climbs and sparse traffic. Built in 1875-76, the road was designed to transport materials to the Lick Observatory, the world"s first permanently occupied mountaintop observatory. On a clear day, you can see as far as Yosemite National Park or the Sierra Nevada from the 4,265-foot summit.