Plot: Robert Hughes tackles the work and lives of three remarkable 20th-century architects: Albert Speer, Mies van der Rohe, and Antonio Gaudi - whose work did so much to shape the modern world. Hughes looks at how each one used space in different ways to express our response, respectively, to the power of religion (Gaudi), the power of the State (Speer), and the power of the corporation (Mies van der Rohe)