Japanese traditional architecture, Joudan floor

In the rooms used by the upper classes, such as samurai elite or aristocracy, you will see an area with raised floor, like in this photo taken at Shoren-in, in Higashiyama, Kyoto.

Called joudan, this raised floor area was designated for the highest ranking persons, while the rest were remaining on the surrounding lower space called gedan. This setup can be seen often in reception rooms inside samurai mansions and in temple guest halls.