Oooohhhh, aaahhhhh. Normally reserved for fireworks, the crowd’s reaction to the color and design of images projected onto the front of the Washington National Cathedral were the same…oooohh, aaahhhhh. Swiss artist Gerry Hofstetter made his debut in the U.S. with this project to mix art with architecture. I went to experience the free 3-day night-time show in Washington D.C. this past weekend. It was a slide show projected on an architectural canvas. Hofstetter transforms buildings, monuments and natural formations into works of art. Over the years the artist has illuminated landmarks in the U.K., the Sphinx and the Great Pyramids and icebergs in Antarctica. What a simple yet profound way to give us a different perspective on iconic architecture.