As this is my 500th blog posting, I'd like to thank all readers and particularly Penny Anderson and Duncan Chappell for their many contributions. I've just returned from a long-planned trip to Chicago, so I'm indulging myself with an image of one of the city's more recent skyscrapers. It's the elegant and streamlined 1389-foot Trump Tower by Skidmore, Owings and Merrill, pictured here with the landmark 1929 Carbon & Carbide Building. Strangely, the Trump Tower has received relatively little coverage in the architectural journals. For anyone familiar with Glasgow, Chicago is a fascinating destination because of its social, economic and physical similarities, albeit on a much vaster scale.