Gaesimsa, Buddhist temple in Unsan-myeon, South Korea

Gaesimsa is a Jogye Order temple on the slopes of Sangwangsan in Unsan-myeon, with wooden halls set at different levels. Its main hall, Daeungjeon, is Korean Treasure No. 143, and the grounds also hold a seated wooden Amitabha Buddha, Treasure No. 1619.

Gaesimsa was founded in 654, the 14th year of King Uija of Baekje, by the monk Hyegam, who named it Gaewonsa. In 1350 the monk Cheoneung rebuilt it and renamed it Gaesimsa. It was expanded in 1475, repaired in 1740 and fully restored in 1955.

The temple serves as an active place where daily monastic practices shape how the grounds are used and maintained. The arrangement of halls and courtyards reflects Buddhist principles of harmony between people and the natural surroundings.

Wear comfortable shoes since the temple spreads across multiple levels connected by uneven paths and stairs. Plan to spend between one and two hours on the grounds depending on how closely you want to explore each area.

The temple features a specialized bracket system that supports the roof eaves both at columns and in the spaces between them, a construction approach uncommon in Korean temples. This technical detail has made it a reference point for scholars studying traditional Korean building methods.