To provide a face structure and a three-dimensional structure excellent in strength, durability, storage, transportation, etc., which is chiefly used for a multipurpose simple house, a water supply tank, etc.

A hollow three-dimensional structure 14 having at least one rotary symmetrical axis is divided to two sections having the same shape with each other. Adjacent inside faces and outside faces are brought into contact with each other and superimposed with each other, in the two or more divided sections to form a face structure 10. Further, the three-dimensional structure 14 has a regular polygonal bottom or a circular bottom face and also has four three-times rotary symmetrical axes. Further, at least two face structures having the same shape which can be superimposed with each other while the adjacent inside faces and the outside faces are brought into contact with each other, are combined to constitute the three-dimensional structure. The hollow three- dimensional structure 14 is provided with a freely openable door or window and at least one rotary symmetrical axis.