As part of the Chicago Architectural Biennial (CAB), architect Nate Lielasus will provide a Basement to Belfry tour of the church. During this inaugural tour at Second Presbyterian, guests will be given a behind the scenes look at areas of the church not typically visited on regular tours, from the basement dirt floor to the charred roof timbers. The tour will focus on original architectural features from the 1874 construction and evidence of changes during Shaw’s reconstruction. .