There are two towns in Usa: Usa-cho that has the Usa Shrine, and Yokkaichi-cho. In Yokkaichi-cho, there are two large temples: the Shingon Otani school of Buddhism Yokkaichi branch temple and Jyodoshinshu Honganji school of Buddhism Yokkaichi branch temple.

As seen, Usa used to be a temple town. The latter was a central temple of Jyodoshinshu in the Kyushu area. The former was established in 1562 and was called Ohigashisan. It burned down once in 1868, but was reconstructed in 1889. The original huge gate, however, has survived and stands today. Combined, the two temples form the largest wooden architecture in Japan.