Tabletop World: In medieval times the river was seen and experienced as a great flow of energy moving slowly and inexorably trough landscape. It was a flow of energy that could be harnessed and put to use. In many river towns mills were built next to river. Rivers also provided the water used for washing and drinking. By using various straight sections and curves and changing their orientation, you have endless possibilities for making a river of any shape. Some buildings, such as Watermill have river sections made specially for them. River section for Stone Bridge is also soon to follow.