Richmond Castle, built at the turn of the century in Kalutara, is considered one of the most spectacular architectural works of the period. It was the property of a wealthy landowner turned philanthropist, Padikara Mudali Nanayakkara Rajawasala Appuhamilage Don Arthur de Silva Wijesinghe Siriwardena. The mansion stands majestically at top of a hill, on a 42 acre estate beside the Kalutara-Palatota Road. Once a circuit bungalow for high ranking officers of the British administrative service, today it is a popular tourist attraction, and serves as an educational centre for less privileged children of Kalutara and the vicinity.