When the Army moved out of the Changsheng Barracks it left behind many stories about military training and historic barrack room buildings. The green tree tunnel in particular was actually a military installation for providing cover to tanks in the early years. The original plans for re-development would have damaged the tunnel ecology so the city government modified the urban development plan to preserve this patch of beautiful forest in northern Tainan. Today, Changsheng Barracks Green Tree Tunnel is a shaded boulevard lined by fig trees forming a rare U-shaped green tunnel.