City Colombo Known for Centre of Economy in Sri Lanka Location 31 km from the International Airport Existing since 15th Century A.D. Places of interest Gangarama (Buddhist Temple), Kadhirajian Kovil (Hindu Temple) Museum, Old Parliament, Dehiwala Zoo, Shopping, Night Clubs, Casinos, Discos, Beaches. Remarks Sri Jayawardanapura Kotte is the capital of Sri Lanka.