 In five days the entire assembly was elevated by a team consisting of six hundred men using six thousand jackscrews, ready for new foundation walls to be built underneath.The spectacle drew crowds of thousands, who were on the final day permitted to walk at the old ground level, among the jacks.The following year a team led by Ely, Smith, and Pullman raised the Tremont House hotel on the south-east corner of Lake Street and Dearborn Street.