Japan as a power in Thailand. The object intended to be used as haul routes troops. And weapons to Burma as well. Bridge over the River Kwai. In the past, this bridge has been used as a route for the general public. Until now it has a standard concrete bridge replaced. And is the focus of tourism to the town. Visitors can walk on the bridge. And take photographs. A novel microscopy and related service know about the history of the bridge and the town beside the bridge in front of them.