View Larger Image Grand Staircase, Powell Hall, 2017 By richard|2019-04-28T15:40:49-06:00August 3rd, 2016|Interiors|0 Comments Related Posts Gallery Hallway, St. Louis Public Library, 2018 Gallery Ceiling Detail, Main Library, 2019 Gallery Security Building Lobby, 2018 Gallery Dome and Cupola, Lobby of the Security Building, 2018 Gallery Grand Ballroom, Union Station, 2017