 This hotel building, which until just the previous year had been the tallest building in Chicago, was raised without incident.On the corner of South Water Street and Wells Street stood the Robbins Building, an iron building long, wide and five stories high.This was a very heavy building; its ornate iron frame, its twelve-inch (305 mm) thick masonry wall filling, and its “floors filled with heavy goods” made for a weight estimated at 27,000 tons (24,000 metric tons), a large load to raise over a relatively small area.