Viharn (Assembly hall)
A viharn or wiharn will often look like the ubosot, except that it is not surrounded by sema stones. In the viharn several Buddhist ceremonies take place with both monks and lay people. Inside the viharn Buddha images are kept. People from outside the Wat come to the viharn to prey. There can be more than one viharn in a Wat. Some viharns are surrounded by a gallery containing a great number of Buddha images. In the early days of Buddhism viharns were build to provide shelter for travelling monks during the rainy season.