Relativity cut and folded in paper is mindblowing

Holy shit! M.C. Escher's Relativity cut and folded in paper from a single piece of 8.5"x11" cardstock, without use of glue or other adhesive! Relativity is the famous lithograph print by the Dutch artist M. C. Escher, first printed in December 1953. It depicts a world in which the normal laws of gravity do not apply.