The port of Manila is the largest and most important in the Philippine archipelago. The city of Manila proper, which boasts the densest population in the world, is really only the center of a larger urban cluster called Manila Metro, housing over 12 million people. Most visitors will be attracted to the oldest section, called Intramuros, to see Spanish colonial architectural icons such as the Manila Cathedral or the ancient San Agustin church. The city’s Binondo neighborhood is the oldest Chinatown on earth, predating the arrival of the Spanish in the mid-18th Century.