Cebu is a region, and consisting of the main island itself and 167 surrounding islands and islets. Its capital is Cebu City, the oldest city and first capital of the Philippines, which is politically independent from the provincial government. Cebu City forms part of the Cebu Metropolitan Area together with four neighboring cities and eight other local government units. Mactan-Cebu International Airport, located in Mactan Island, is the second busiest airport in the Philippines. Cebu is one of the most developed provinces in the Philippines, with Cebu City as the main center of commerce, trade, education and industry in the Visayas. In a decade it has transformed into a global hub for shipping, furniture-making, tourism, business processing services, and heavy industry.