"Meschers" can create multi-dimensional versions of objects that break the laws of physics with convoluted geometries, such as buildings you might see in an M.C. Escher illustration (left) and objects that are shaded in impossible ways (center and right). Credit: Alex Shipps/MIT CSAIL, using assets from Pixabay and the researchers M.C. Escher's artwork is a gateway into a world of depth-defying optical illusions, featuring "impossible objects" that break t