Laguna de Bay is the largest lake in the Philippines and the third largest freshwater lake in Southeast Asia (in terms of surface area) after Tonle Sap in Cambodia and Lake Toba in Sumatra, Indonesia.
Istanbul is the largest and most cosmopolitan city in Turkey. It is known as Constantinople and is the 5th largest city in the world with population of 12,8 million inhabitants. The famous and iconic monument of Aghia Sophia, a Christian Orthodox cathedral, is the main touristic attraction of the city and it was built 532 and 537. This megacity offers an amazing nightlife and also culture, historical attractions and beautiful markets.