Maquette: Walkthrough & Puzzle Solutions Guide | Pt. 6 - The Exchange
This level gets weird right from the start. You can’t collect the [ Maquette] in the center, but you can pick it up with the placement button. Pick it up and the stones surrounding your area will disappear, allowing you to explore the many structures inside. Go to the Garden Tower with the huge set of stairs and flip the switch in the cage. This unlocks the White Tower. Go into the White Tower, touch the owl, and another switch will spawn. The switch is on a timer — so you’ll have to reach the Red Tower fast. White Tower Timer Switch Puzzle
Source: gameranx.com