San Francisco Bay Area a primary embarkation point for American forces. In 1945, the United Nations Charter was signed in San Francisco, establishing the United Nations, and in 1951, the Treaty of San Francisco officially ended the U.S.'s war with Japan. Since then, the Bay Area has experienced numerous political, cultural and artistic movements, developing unique local genres in music and art and establishing itself as a hotbed of progressive politics. Economically, the post-war Bay Area saw huge growth in the financial and technology industries, creating a vibrant and diverse economy with a gross domestic product of over $800 billion, and home to the
Transportation in the San Francisco Bay Area Air. Airport shuttle buses and vans provide services from the three major San Francisco Bay Area airports, namely San Francisco International Airport (SFO), Oakland International Airport (OAK), and San Jose International Airport (SJC) — Flat Rate Airport Taxi Cab and Car Service; BayPorter Express Airport Shuttle; Marin Airporter; Marin County Airport Shuttle; Monterey Airport Shuttle; Non Stop Airport Shuttle; Sonoma County Airport Express; SuperShuttle; and Cook Limousine Services. Public transportation in the San Francisco Bay Area is quite extensive, including one heavy rail/commuter rail system, one commuter rail line, two light rail systems, Amtrak inter-city rail service, and four major