The wooden corridor bridge, about 200 meters long, was built in 1333 and spans the Royce River. The wooden bridge and the octagonal water tower beside the bridge were part of the city's water defense works. There are 110 triangular paintings on the beams under the veranda, on which Heinrich Bergman depicts the life of the saint who guarded Lucerne. Water towers are outposts to monitor foreign invasion, which are used as warehouses and interrogation rooms for loot. Capel Corridor Bridge and Octagonal Tower are the landmarks of Lucerne and Switzerland. In the daytime, there are delicate flowers on the railings; in the evening, the corridors and water towers are very romantic in the light of colorful lights. This is an important scenic spot in Ryusen. Tourists will come to visit it. We walked across the gallery bridge and visited the appearance of the octagonal water tower.