21. It looks like one of those relief maps made with flour and salt and water in geography class, 22. Geiger, Colonel Silverthorn, and Brigadier General del Valle examine a plaster relief map of Guam on board the ]] 23. These fine-art relief maps look three-dimensional, with their land contours rendered in colors from low-lying green to top-of-the-continent white. 24. His face is a relief map of mischief and melancholy, and there is a laugh hidden in every crease. 25. The images and data enabled creation of surface relief maps , and gave information on the Martian gravity and magnetosphere. 26. The map room contains a bronze relief map and four fresco maps depicting the military operations in Sicily and Italy. 27. Inside, light from an enormous window illuminates a beautifully painted relief map of Iceland that must be 20 yards square. 28. The dining room located on the same floor is highlighted by a relief map of the Philippines on its ceiling. 29. The images and data enabled creation of surface relief maps , and gave information on the Martian gravity and magnetic fields. 30. The design by Henry K . Bencsath features a lamp of learning against a bas-relief map of the continental United States.