8-Cube_Tesseract.mov
This is a tesseract (or hypercube) with all of it's cubic faces in different colors so they can be seen. The colors are as follows: red = +x, light blue = -x, green = +y, purple = -y, blue = +z, yellow = -z, white = +w, and black = -w. Notice how four cubes come together at each vertex. They are all orthogonal to each other - which is, or course, impossible in 3-space.