Balboa Park (San Diego) San Diego History Center, the Reuben H. Fleet Science Center, and the Timken Museum of Art. Other features along El Prado include the Reflection Pond, the latticed Botanical Building, and the Bea Evenson Fountain. Next to the promenade are the San Diego Air & Space Museum and the San Diego Automotive Museum. Theatrical and musical venues include the Spreckels Organ Pavilion, featuring one of the world's largest outdoor pipe organs; the Old Globe Theatre complex, which includes a replica of Shakespeare's Globe Theatre as well as an outdoor stage and a theatre in the round; and the Starlight Bowl –
Economy of San Diego Military Sealift Command vessels". Two supercarriers, (, and ), five amphibious assault ships, several "fast" attack submarines, the hospital ship , carrier and submarine tenders, destroyers, cruisers, frigates, and many smaller ships are home-ported there. Four Navy vessels have been named . Tourism is a major industry owing to the city's climate, its beaches, and numerous tourist attractions such as Balboa Park, Belmont amusement park, San Diego Zoo, San Diego Zoo Safari Park, and SeaWorld San Diego. San Diego's Spanish and Mexican heritage is reflected in the many historic sites across the city, such as Mission San Diego de Alcala