One of Americas most famous architects, Frank Lloyd Wright, was well ahead of his time with his works. Many of his buildings would not look out of place now even though they where built up to 80+ years ago.  His use of windows and clear cut levels produce a clean and organized design. I never would have guessed that the building above, the Fallingwater home, was built in 1938.  An example of his work can even be found in Oklahoma with the Price Tower in Bartlesville. Wright was also fairly prolific while he was working, having over 500 structures built with his designs.