Segments of painted steel pipe awaited the assembly of Anna Borgman and Candy Lenk’s Radiator in Berlin. Photography courtesy of Borgman & Lenk.Bolted together, the segments formed columns. Photography courtesy of Borgman & Lenk.Nylon straps held the columns in place as connectors were added on top. Photography courtesy of Borgman & Lenk.A cherry picker assisted a crane as it lowered components inside the remains of a 13th-century church destroyed in World War II. Photography courtesy of Borgman & Lenk.