When I showed overseas tourists around Higashi-Chaya Geisha District, they wanted to see a scene of roof tiles. Roofs on the wooden buildings in the Hokuriku region are covered with traditional shining black tiles. A roof tile is made of clay. Clay is formed to a shape of roof tile, and dried, and glazed, and fired at the temperature of 1,000 to 1,250 degrees Celsius. Another characteristic is that some tiles have arch-like hooks to prevent snow from sliding down to the ground so that not to harm walkers on a road.