Bissau is the capital city of Guinea-Bissau. The city's borders are conterminous with the Bissau Autonomous Sector. In 2007, the city had an estimated population of 407,424 according to the Instituto Nacional de Estatística e Censos. Instituto Nacional de Estatística e Censos The city which is located on the Geba River estuary, off the Atlantic Ocean, is the country's largest city, major port, administrative and military center. History and landmarks The city was founded in 1687 by P… (More on Bissau)