The concrete building that is now the Colorado Business Bank was originally constructed in 1907 for Charles Boettcher's Ideal Cement Company. Twenty years later, it was completely redone by the premier Denver architects of the time, Fisher and Fisher, who converted the ordinary building into a remarkable structure encrusted with terra-cotta decorations and lined with luxurious surface treatments, including metal and plaster bas-reliefs, engraved metals, and terrazzo in elaborate multicolored patterns. Although the building was fairly well maintained, time eventually took its toll on the paint and plaster -- and even the terrazzo. That's why Evan Makovsky, who bought the building a couple of years ago for the bank, asked Sprung Construction to give it a thorough going-over last summer. The interior and exterior were restored beautifully, and the heavenly ceiling was expertly touched up by the International Fine Art Conservation Studio. Makovsky took a personal interest in the project, and it shows.