A Vietnamese mason pulls a cart carrying cement at a new urban area in Hanoi, Vietnam, August 19, 2005. Speculators in Hanoi and Ho Chi Minh City have watched sky-high gains evaporate due to waning demand for urban housing and a transaction tax imposed at the start of this year. Photo taken on August 19, 2005. To match feature PROPERTY-VIETNAM. REUTERS/Kham Kham/YH