San Francisco
Claimed to be the largest of its kind outside Asia and the oldest in North America, San Francisco's Chinatown is perhaps the most famous in the United States. The city was the main entry-point for Chinese who had crossed the Pacific to the USA during the mid-19th century. Between the more tourist-oriented Grant Avenue - where the signature red gate may be found - and the ostensibly more authentic Stockton Street, this historic area is a local treasure, attracting more visitors per year than the Golden Gate Bridge.