Traditional Japanese architecture is unmistakable in its thoughtful design and construction. Much of Japanese architecture, both new and old, is carefully laid out to incorporate the history and traditions of the culture into each structure. One of the most prominent features of traditional Japanese buildings is the use of wood. In older buildings, the wood was left unpainted to show appreciation for its natural grain. In addition to sliding doors, many traditional homes include a Genken, which is a small part of the entrance where shoes are placed before entering.