During my trip to Seattle I also got the great chance to see Dale Chihuly's Garden and Glass exhibition. It was the most beautiful exhibition I have ever been to. All his artwork was made of glass and extremely delicate. I recall that someone told me they had one on the ceiling of a hotel in Vegas, but seeing this was extraordinary. I was drawn by all the colors he used and the time he spent to make something so magnificent.
If you are interested, definitely take the time to go!