Russian-born Max Weber grew up in New York, studied art there, and then went back to Europe to familiarize himself with contemporary artistic developments, on returning to the United States, Weber worked in the new styles he had discovered in Paris and soon became recognized as a pioneer of American abstract painting. An example of his work at the National Gallery of Art in Washington D. C. is a 1915 painting entitled 'Rush Hour, New York. ' Using abstract, geometrical forms, Weber has expressed the movement, noise, and vibrancy of the great metropolis. The picture blends elements of two European styles: cub- ism, which shows subjects from a number of different angles of vision at the same time, and futurism, which portrays speed and objects in motion. Forceful lines and spiky forms throughout the composition convey the energy and vitality of the city, Weber expresses the city's diversity by juxtaposing forms with rounded and angular shapes to suggest specific elements of the urban landscape: skyscrapers, flashing lights, and hurrying people. Which of the following would be the most appropriate title for this passage?