While Kahn's tetrahedron tower was never realized, his inventive suggestion of stacking pieces of precast concrete, a new typology of high-rise design, influenced future modular projects.  Photo 8 of 11 in Design Icon: 9 Buildings by Louis Kahn

Design Icon: 9 Buildings by Louis Kahn

8 of 11

While Kahn's tetrahedron tower was never realized, his inventive suggestion of stacking pieces of precast concrete, a new typology of high-rise design, influenced future modular projects.