Description : Buildings along the bank of Kaptai Lake in Rangamati. A popular tourist destination, it is the country?s largest manmade lake, spreading over 680 square kilometers flanked by hills and forests. The lake was formed when the 153 feet high and 1800 feet long Karnaphuli river dam was built for a hydroelectric project in Kaptai. The project began in 1956 and ended in 1962. Rangamati, Chittagong, Bangladesh.