The spiraling shell structure was sited to capture Harbor breezes and allow the ride to rely on natural ventilation throughout the year. The circular design also echoes the plan of the Battery, and together its elements articulate a new curvilinear park geometry. Scenes of undersea life are projected on the shell's interior, creating an entirely new experience for visitors. The project transforms the traditional ride structure into an instrument of the future with digital projection and electrified glass technology, or “Smart Glass.” An audio component combines environmental noise made by the moving parts of the structure with amplified original musical scores recorded live by New York City musicians. Using the paradigm of the magic lantern, the Smart Glass façade changes from clear to opaque as the ride begins, dimming the space to capture the experience of diving under water. As the carousel spins, digital projections cast moving images on the interior of the building’s shell, animating the voyage.