The Bot (also called Ubosoth) is the ordination hall of a Wat. It is the place where new monks take their vows. You can recognize a building as a Bot by the six boundary stones (Bai Sema) that define the limits of its sanctuary. Bots are usually open only to the monks. Inside are always an altar and one or several Buddha images.

Chedi

A Chedi (a different term would be stupa or pagoda) is a domed edifice, often quite tall, under which relics of the Buddha or revered religious teachers are buried.

Chofah

Chofahs are the bird-like decorations on the end of the temple roofs. If you visit the Museum of the Emerald Buddha  near the Grand Palace in Bangkok you can see examples of  chofahs displayed in glass cases in the ground floor and have a closer look at them. Chofahs are often decorated with little bells that tinkle in the wind.

Ho Trai

The Ho Trai  (also transcripted as "Ho Phra") is the library of the Wat. It is usually a very small, highly decorated building. In the Central Plains it often sits on columns in a pond . The holy scripts and sacred manuscripts of the Wat are kept inside.

Mondop

A Mondop (also called Mandapa) is a baldachin structure that has in some temples been erected above the library with the sacred Buddhist scripts.

A Naga is a representation of a mystical serpent that according to the holy scripts sheltered the Buddha while he was meditating. In temple architecture, it runs down the edge of the roof, or, especially in Lanna (North of Thailand) temples, flanks the staircase that ascends to the Viharn or Bot. In sculptures, it is depicted sheltering the head of the Buddha with its own. Beautiful representations of Nagas are known from Khmer art, as found in the Khmer ruins in the Northeast of Thailand.

Prang

A Prang is an Ayuthayan or Khmer-style (see Short Overview of the History of Thailand) Chedi that is high and slim and looks like a vertical ear corn. Many of the Chedis in Wat Phra Kaew or Wat Po in Bangkok are Prangs.

Sala

A Sala is an open-sided pavillion. Some Viharns are built in this style.

Viharn

A Viharn is a sermon hall. It is usually the busiest building in a Wat and open to everyone (provided the visitor behaves according to the temple etiquette!: you must be properly dressed, take off your shoes before entering a building and behave quietly) Just like the Bots, Viharns hold an altar and one or several Buddha images.

Wat

A Wat is a Thai Buddhist temple or monastery. In most cases it is not just one building, but a collection of buildings, shrines, and monuments within a courtyard that is enclosed by a wall.