For 129 years, Daniels and Fisher and May-D&F proudly served the Mile High City. Today, the restored Daniels and Fisher Tower adorns the Sixteenth Street Mall while the I.M. Pei-designed ice-skating rink and hyperbolic paraboloid at May-D&F survive only in memories. The story of these institutions is filled with fascinating characters, including dashing, tower-building William Cooke Daniels; his aristocratic English wife, Cicely; and flamboyant William...