This is a documentary about tall buildings and an even bigger story. Nathaniel Kahn, the illegitimate son of late, great modernist architect Louis I. Kahn, serves as director here on his mission to construct an image of his father. Nathaniel attempts to define his family (his father had two children out of wedlock and one while married) while capturing the simple brilliance of his pop's designs, which cinematographer Robert Richman captures gloriously.
Architects from Philip Johnson to Frank Gehry speak on behalf of Kahn, but this is more about processing the pain Nathaniel's father caused him. That aspect of this documentary hits its high mark near the end, when Nathaniel travels to Bangladesh to see his father's most striking work and encounters a native architect whose insight allows him to appreciate his imperfect father. It is the final stop on a journey well worth taking.