Having just spent the weekend in lovely Chicago, I had the opportunity to take one of the wonderful walking tours of the city done by the Chicago Architecture Foundation. We did the Historical Skyscrapers Tour and were really pleased. I highly recommend making some time for the CAF on your next visit to the city.

Of course, Chicago is a great city for historical architecture. Some other places are not. This point was made nicely today by Zach Schrag in his CHNM Brown Bag Lunch presentation of Washington DC History Matters, when he explained that Washington DC and Manhattan both have long traditions of "creative destruction" by which the cities have been knocked down and rebuilt many, many times.