text: Nothing of the superstructure has survived. A number of monastic cells facing a rectangular courtyard have been found. A notable feature is the presence of circular corner cells. It is believed that the general layout of the monastic complex at Jagjivanpur is by and large similar to that of Nalanda. Beside these, scattered references to some monasteries are found in epigraphic and other sources.  Among them Pullahari (in western Magadha), Halud Vihara (45 km south of Paharpur), Parikramana vihara and Yashovarmapura vihara (in Bihar) deserve mention. Other important structural complexes have been discovered at Mainamati (Comilla district, Bangladesh). Remains of quite a few viharas have been unearthed here and the most elaborate is the Shalban Vihara. The complex consists of a fairly large vihara of the usual plan of four ranges of monastic cells round a central court, with a temple in cruciform plan situated in the centre. According to a legend on a seal (discovered at the site) the founder of the monastery was Bhavadeva, a ruler of the Deva dynasty.
  Southeast Asia
  As Buddhism spread in Southeast Asia, monasteries were built by local kings. The term vihara is still sometimes used to refer to the monasteries/temples, also known as wat, but in Thailand it also took on a narrower meaning referring to certain buildings in the temple complex. The wihan is a building, apart from the main ubosot (ordination hall) in which a Buddha image is enshrined. In many temples, the wihan serves as a sermon hall or an assembly hall where ceremonies, such as the kathina, are held. Many of these Theravada viharas feature a Buddha image that is considered sacred after it is formally consecrated by the monks.