Abstract: A binocular kaleidoscope having a generally V-shaped housing with an opening at the base of the V and the two arms of the V-shaped housing being hollow tubes diverging from the opening. The longitudinal axes of both arms pass through the opening. A moveable image is adjacent to the opening at the base of the V, the image being directly viewable through the opening when looking along the length of each of the arms of the housing, so that when both eyes of a person using the kaleidoscope are brought close to the free ends of the hollow arms of the housing, the moveable image is viewed directly and simultaneously by both eyes. The image is both front and back lit. Each of the housing arms may have triangular cross-sections and mirrored interiors. Each arm is provided with a telescoping extension so that the lengths of the arms, and hence the spacing between the free ends of the arms, is adjustable to conform to the spacing between the eyes of the user.