Ono-dera Temple, located in Doto-cho, Sakai City, Osaka Prefecture, is a temple of the Shingon sect, and one of the 49 temples built by the high priest Gyoki of the Nara period. The remains of a pagoda remain to the southeast of Onodera Garan. This pagoda, which is shaped like the top of a square pyramid with a side of 53.1 m and a height of over 8.6 m, was originally shaped like a 13-tiered pyramid, as a large number of tiles were excavated from the surrounding area. It is thought to have been an earthen tower with a tiled roof. Approximately 1,200 of the tiles excavated were made by clans from the Setagaizumi area, such as the Tajihi no Muraji, Hata, and Yatabe no Muraji, as well as monks and the general public, who helped build them. Written on it are characters that seem to be the names of the people who did it. Even nationwide, it is rare for so many ancient written materials to be discovered. A similar structure is the stone masonry ``head pagoda'' that remains in Takahata, Nara City, but there is no other pagoda whose surface is covered with tiles like the clay pagoda at Ono-dera Temple. In 1953, it was designated as a national historic site.