Sambodhi Chaithya, also known as Buddha Jayanthi Chaithya, is a stupa located in Colombo Harbour, Sri Lanka. Built with reinforced concrete, this Buddhist shrine was designed by A.N.S. Kulasinghe to commemorate the Sambuddhatva jayanthi. The stupa sits atop two interlocking arches and overlooks the entrance of the Colombo Harbour. With 123 steps leading up to it, the stupa stands as a symbol of peace and spirituality in the bustling city.