I was in Downtown L.A. a little while back and snapped this photo:
According to the lacity.org page on the Sister City program:
Los Angeles began its Sister City program in 1959 with Nagoya, Japan. That was over 40 years ago and since then the Los Angeles Sister City program has grown and now includes 20 Sister Cities located over 6 continents. This is the largest number of affiliations in California.
Did you know Los Angeles had so many sister cities?
The program is supposed to provide “opportunities for city officials and citizens to experience and explore other cultures through long-term community links.”