They used Colorado Yule Marble for the Lincoln Memorial and the Tomb of the Unknown Soldier. In fact, anytime someone wants to make something look grand, they call for the sleek stone that's quarried in the town of Marble, near Aspen. At the Marble Institute of Colorado's MARBLE/marble XIV classes this summer, sculptors of various levels of experience and expertise can learn to shape marble. After a group of internationally known instructors offers the basics on carving stone, each student will receive three cubic feet at which they can chip away. That rocks!