Usually, looking to the Empire State Building from a certain angle makes a Zeppelin appear.
Sometimes all the objects in Monument Park (except the Zeppelin) will begin to stretch upwards. It's still unknown what causes this event to occur, but it usually happens after looking up for periods of time.
Sometimes, the vertical stretching will happen twice in the same visit. When this happens, the models will eventually vanish, leaving only the grassy floor behind.
Maybe is a representation of the Tobu World Square Miniature Park of Japan.
Following the Alien Sleep Experiment hypothesis, the Monument Park could represent the alien view of earth from space; A large expanse of nothing, dotted with several impressive landmarks.
Many speculate that walking into different landmarks can consistently bring you to other specific locations every time.