Century Park Tower

The Century Park Tower (センチュリーパークタワー), also known as River City 21 M, is a residential building in the River City 21 building complex in the Chūō special ward of Tokyo, Japan. Completed in March 1999, it is 180 m (590 ft) tall. It is the 45th tallest building in Tokyo and the 66th tallest building in Japan.