1. Frank Lloyd Wright

2. Robie HousePraire Style, Oak Park

4. Frank Lloyd Wright P.O.B. Wisconsin Born: June 8, 1876 Known for: Creating the most influential American Architecture of the 20th century. He has influenced the world of architecture and has been known for being stubborn and arrogant. He was a self proclaimed genius. He has built over three hundred buildings which include homes, businesses, and public buildings.

5. Falling Water 1935Medium: Reinforced concrete, stone, and wood

6. Guggenheim Museum Description: Located in NYC, the museum is made of reinforced concrete. The structure is that a seashell seen from above. Visitors take the elevator to the top and look at artwork as they descend down a spiral ramp. Many critics said it looked like a washing machine, but then recognized it as an architectural masterpiece.

7. Guggenheim Museum 1959Medium: Reinforce Concrete