Ōtsu is the capital city of Shiga Prefecture, Japan. Ōtsu is known as the main port of Lake Biwa, the largest lake in Japan. It briefly served as a capitol of Japan from 667 to 672 AD during the Asuka period (538 – 710). The city is home to numerous sites of historical importance, notably the temples of Mii-dera, Ishiyama-dera, and Enryaku-ji and the Hiyoshi Taisha...