A Gateway Arch (Dragon Gate) on Grant Avenue at Bush Street in Chinatown, the only authentic Chinatown Gate in North America. Unlike similar structures which usually stand on wooden pillars, this iconic symbol conforms to Chinese gateway standards using stone from base to top and green-tiled roofs in addition to wood as basic building materials. The Gateway was designed by Clayton Lee, Melvin H. Lee and Joe Yee in 1970.[1]

Chinatown, in San Francisco, California, (Chinese: 唐人街; Mandarin Pinyin: tángrénjiē; Jyutping: tong4 jan4 gaai1) is the oldest Chinatown in North America and the largest Chinese community outside Asia.^{[4][5][6][7][8]} Since its establishment in 1848,^[9] it has been highly important and influential in the history and culture of ethnic Chinese immigrants in North America. Chinatown is an enclave that continues to retain its own customs, languages, places of worship, social clubs, and identity. There are two hospitals, numerous parks and squares, a post office, and other infrastructure. Visitors can easily become immersed in a microcosmic Asian world, filled with herbal shops, temples, pagoda roofs and dragon parades. In addition to being a starting point and home for thousands of Chinese immigrants, it is also a major tourist attraction, drawing more visitors annually than the Golden Gate Bridge.^[10]

• http://en.wikipedia.org/wiki/Chinatown, San Francisco