The Gangatilaka Vihara at Kalutara can be seen from miles away. This Huge new dagoba, just south of the Kalu Ganga Bridge, marks the site of an ancient Buddhist temple. The outer dome is hollow and a small dagoba is found inside with a beautifully painted interior. The Bo Tree in front is a famous place with motorists who stop their vehicles to put a coin to the tilts kept out near the road to ensure the safety and success of their journeys.