In the Nara period, Daian-ji Temple, which had a large complex with various buildings, including two seven-storied pagodas in the east and in the west, was a huge temple comparable to Todai-ji Temple and Kofuku-ji Temple.
奈良時代の大安寺は東西2基の七重塔をはじめとする大伽藍を有し、東大寺、興福寺と並ぶ大寺院であった。