The City of Phoenix's ongoing renovation of Tovrea Castle, one of the Valley's premier oddball landmarks, has given us hope that Phoenix has finally learned to spell "p-r-e-s-e-r-v-a-t-i-o-n." The estate — which looks like a royal wedding cake defended by a swarm of palace-guard saguaros — was built by Italian entrepreneur Alessio Carraro and named after meat-packing magnate Edward Tovrea, who bought the baronial digs for his wife, Della, in 1931. The sentinel saguaros are part of the Castle's spectacular Carraro Cactus Garden, which was designed and planted by Alessio and his sons in 1928. Until recently, it was a secret garden, opened to the public only once, in 1984, for one lousy weekend. But the city introduced regular public tours in early '07, and guided walks through our arid little Eden — which is packed to the gills with both common and exotic samples of high- and low-Sonoran Desert flora — are now scheduled each January through May.