Library

In Angkor, a library is an isolated annex, usually found in pairs on either side and in front of the main entrance to a temple, or the entrance to an enclosure.

This is a traditional name for them, and they were more likely to have been a kind of shrine than a repository of sacred texts.

They nearly always open to the west, except at Angkor Wat Temple where they open to the east and the west.  They generally have high openings and could have been used to store the Sacred Flame.

See also Angkor Architectural Styles.