Cities can bring wonderful feng shui to their citizens by creating unique architectural wonders and supporting great architecture. The bonus is that these important structures become destination points for tourists and that brings wealth and prosperity for years to come. Many urban centers are dying. Mayors and city councils should wake up before they follow in the footsteps of Detroit. Check out the latest such city to take advantage of the architecture tourism phenomenon: The Arbor of Seville – Slide Show – NYTimes.com.