In the Pacific states, the wide areas filled with small towns, farms, and forests are supplemented by a few big port cities which have evolved into world centers for the media and technology industries. Now the second largest city in the nation, Los Angeles is best known as the home of the Hollywood film industry; the area around Los Angeles also was a major center for the aerospace industry by World War II, though Boeing, located in Washington state would lead the aerospace industry. Fueled by the growth of Los Angeles, as well as the San Francisco Bay area, including Silicon Valley, the center of America's high tech industry, California has become the most populous of all the 50 states.