Triton Square is the centerpiece of Harumi island. It's three office towers with a mall connecting them at the base, and then a food court and some apartment buildings included in the whole complex. Because the towers are so large, only one and part of another are visible in this picture. In the foreground are the model towers, constructed of a steel framework and 500 ml. plastic bottles strung together. Harumi Triton Square is celebrating its 10th anniversary.
Here's another angle showing more of the model. The alcove in front of the model represents the outdoor terrace in front of the food court where the model has been built. Just above the tower on the left is the real tower on the left, which is our apartment building. You may (probably do) have larger living quarters than us, but have they ever been commemorated in a model made of recycled water bottles? I don't think so.