Genkan

Genkan(玄関) are traditional Japanese entryway areas for a house, apartment, or building—something of a combination of a porch and a doormat. The primary function of genkan is for the removal of shoes before entering the main part of the house or building. Genkan are often recessed into the floor, to contain any dirt that is tracked in from the outside (as in a mud room). The tiled or concrete genkan floor is called tataki (三和土).