Observation Tower in Daejeon-City, Korea. It was built for the Expo 1993. Landmark of Daejeon-City. It’s a real-world sized model. Internal space reproduced. The first floor, the doughnut-shaped observatory, and the observatory at the top of the tower, too. Simple Material slot, can change it easly. You can use Default renderer too. If you have free plug-in “Forest Pack Lite”, You can make Grass. Grass area shape ready.