Abstract: A kaleidoscope which is characterized in that it comprises a hollow box (10) having peep holes (12 and 13) in one of its side walls, polygonal hollow cylinders (31A and 31B) each of which has 1st and 2nd end surfaces, whose inner surfaces are mirror surfaces and which are so provided inside hollow box (10) that they correspond to the peep holes (12 and 13) and the 1st end surfaces face the peep holes (12 and 13) with lenses (32) therebetween respectively, object cases (33A and 33B) in which objects (350) are housed and which are provided rotatably at positions where their one side walls (333) face the 2nd end surfaces of the polygonal hollow cylinders (31A and 31B), light sources (40) which face the other side walls of the object cases and are provided on the other side wall are formed at positions corresponding to the hollow box (10), a means (35, 36) which is provided in the hollow box (10) and gives rotary motions to the object cases (33A and 33B), sound sources which are provided in the hollow box (10) an