- Source: Green Tower, Sanbu
Green Tower (グリーンタワー, Garīn-tawā) is a 60-meter-high (197 ft) lattice tower located in Forest Park at Sanbu, Chiba, Japan. Built in 1998, the tower represents the Sanbu Japanese cedar tree. It includes an observation deck located at 40 metres (131 ft) that provides visitors with a 360-degree view of the surrounding landscape.