In the summer of 1909, the Guastavino Company had built one of the largest masonry domes ever completed for St. John the Divine. The company did so by creating the cathedral's crowning feature with no support from scaffolding. As a result, they were able to build far more quickly and at a much lower cost than any other dome of its size in history. The project at St. John the Divine garnered national and internationl attention, thrusting Guastavino Jr. into the pages of leading magazines and newspapers. Courtesy of Avery Architectural and Fine Arts Library, Columbia University