The Kintai Bridge is a historical wooden arch bridge, in the city of Iwakuni, in Yamaguchi Prefecture. The bridge was built in 1673, spanning the Nishiki River in a series of five wooden arches, and the bridge is located on the foot of Mt.Yokoyama, at the top of which lies Iwakuni Castle. Declared a National Treasure in 1922, Kikkou Park, which includes the bridge and castle, is one of the most popular tourist destinations in Japan, especially for the Cherry Blossom festival in the spring and the autumn color change of the Japanese Maples.