This pagoda was discovered at the former site of Goseonsa Temple where Wonhyo, one of the greatest Buddhist monks, served as head monk. It was moved to its present location at the Gyeongju National Museum in 1975, when the area occupied by the Goseonsa Temple Site needed to be flooded for the construction of the Deokdong Dam. The pagoda consists of a three-story body mounted on a two-story platform - the most common style used during the Unified Silla Period. The platform is made of several stones, and each side displays pillar-shaped carvings. The body also consists of several stones put together, and only the third story of the main body is made of a single stone. It was discovered during the dismantling and reconstruction period that this was a choice to provide space for reliquaries. The roof stone slopes gently toward the four corners, which are slightly raised, which gives the pagoda an appearance of lightness. The staircase-shaped supporting roof stone is made of five layers. The pagoda is estimated to have been built in the late 7th century, showing the early stages of adopting typical stone pagoda styles during Unified Silla. This typical style can be also seen in the East and West Three-story Stone Pagodas at Gameunsa Temple Site (National Treasure No. 112), and it reached its artistic peak with the Three-story Stone Pagoda of Bulguksa Temple (National Treasure No. 21).