Fun for adults and kids, this museum-on-water is the focal point of San Diego's historic Embarcadero Promenade. Comprised of several painstakingly restored historic ships, it is a tribute to the sea-faring age. One of the ships showcased at Maritime Museum of San Diego is the Star of India (1863), a stunning vision that graces the coastline as the world's oldest actively-sailed, square-rigged ship.