The most famous artist who was alive at this time was Michelangelo. He was mainly a sculptor but he had spent five years painting the ceiling of the Sistine Chapel. Like everybody else, Marten van Heemskerck thought it was amazing. He was so influenced by the figures that Michelangelo had painted that he designed a series of pictures called "Twelve Panels showing Strong Men from Mythology and Biblical History". Like the series of the "Seven Wonders of the Ancient World" they are well known as prints made from "engravings" (they are printed from a metal plate with the design cut into it).