The One Embarcadero business center is among the most well-known locations in the middle of San Francisco's globally important financial district. It is also close to Chinatown and waterfront attractions that include the renovated Ferry Building and Pier 39 at Fisherman's Wharf. The business center is in one of the four towers that make up the Embarcadero Center, designed by internationally renowned architect John C. Portman, Jr to allow sweeping views of the city, as well as the San Francisco Bay. The buildings are home to law firms, advertising agencies, insurance firms and corporate headquarters and are very popular due to on-site restaurants, a movie theater and shops. Banking is the largest private-sector employer in the city, but Silicon Valley high technology, small-business entrepreneurship and tourism have vital roles to play in the economy.