Along the historical streets of Wakimachi (dating from the Edo period, 1600-1868) can been seen Udatsu, or high-winged walls that break the continuous roofline. These extra dividers at the edges of the houses, made from clay-rich earth, were designed in part to prevent the spreading of fires. Wakimachi was an indigo dyeing center and home to many wealthy merchants, and rows of fine houses with classic tile roofs and storehouses have been preserved. To protect the architectural character, the national government has designated this district as an important preservation district for groups of historic buildings.
