It's all entirely conceptual, of course, and such an undertaking would require colossal infrastructure changes. But it's certainly a fascinating idea. By building down instead of up, the Horizon concept would flip the entire concept of "overlooking Central Park."
According to the plan, soil and rock removed from the existing Central Park would be relocated to building projects in other neighborhoods. Then the 1.3 square mile trench would be terraformed into an entirely new Central Park - only 100 feet lower. The cliff wall of windows surrounding the park would be made from highly reflective glass, creating a mirror illusion of infinite space.
Drifting Skyscraper Turns Air Pollution into Green Energy
eVolo, by the by, is a architecture and design journal whose objective is to "promote and discuss the most avant-garde ideas generated in schools and professional studios around the world." It's one of the coolest online destinations to click around, if you're at all into this sort of thing.