This document discusses passive cooling systems and presents a project on wind tower design. It describes passive cooling as a building approach that focuses on heat gain control and heat dissipation with low or no energy usage. Cross ventilation and shade trees are discussed as passive cooling techniques. The project then presents designs for a house incorporating a vertical wind tower to catch breezes and direct air flow inside for passive cooling. Diagrams show the house plans, elevations, and sections with wind tower details. The conclusion emphasizes that wind towers provide thermal comfort without energy usage as an advantageous passive cooling system.