We all know that wood is being used for interiors as well as it can be used to build a house of 2 to 3 floor. But you'll be surprised, Sumitomo Forestry a Japanese company planning to build 350 meter tall building, the world's tallest wooden skyscraper with 90 percent of the building made of wood. Isn't it amazing. The concept for the building has been prepared primarily at Tsukuba Research Institute.