High Quality Content by WIKIPEDIA articles! The stupa is considered an outstanding type of architectural creation of ancient Sri Lanka. Under the influence of Buddhism there occurred several changes in the field of architecture in Sri Lanka. The stupa commands a prominent place among these changes. The Stupa is also known by synonymous names such as Chaithya, Dagaba, Thupa, Seya and Vehera.Stupas designed and constructed in Sri Lanka are the largest brick structures known to the pre-modern world.