This apartment consists of two identical units with one bedroom on top of each other, which are combined to form a maisonette house. The most unusual thing about this combination is a half-tube stainless steel slide that connects two levels of the apartment. It starts on the top floor near the office and ends up near the living and dining areas. This slide is surrounded by custom-made glass railings and floor-to-ceiling windows with views of New York. This duplex penthouse is a perfect place to work, play and live. It was designed by Turett Collaborative Architects.