Spectacular terraced Penthouse with Central Park and Reservoir views in the heart of Carnegie Hill. Rarely does such a special home come on the market that truly has it all. The upper floor features a private elevator landing with a big living room facing the park and a large planted terrace with stunning open views of Central Park, the Jacqueline Kennedy Onassis Reservoir and city skyline. The graciously-sized terrace wraps around the apartment and boasts panoramic views and multiple seating areas making it ideal for glamorous entertaining and fabulous everyday outdoor living. The irrigation system and multiple awnings make this incredible outdoor space easy to maintain, a pleasure to enjoy and a peaceful retreat from the busy city below. The upper floor also boasts 2-3 bedrooms, 3.5 bathrooms and a maid's room/office. The lower level offers a windowed eat-in kitchen, formal dining room, wood paneled library and a master bedroom suite all with Central Park and Reservoir views. Other details include central air, a washer/dryer, two fireplaces, beautiful hardwood floors and an abundance of bookshelves and built-in storage. Built in 1927 by notable New York architect, George F. Pelham, 21 East 90th Street is a full-service building on one of the prettiest streets in all of Manhattan. This historic block was selected by Andrew Carnegie because it is the high point of what is now known as Carnegie Hill. This quiet, tree-lined street is also home to the Cooper Hewitt Museum and its enclosed garden (a national historic landmark) as well as the magnificent neo-gothic Limestone Church of the Heavenly Rest. This incredible location is close to several of the city's best schools (both public and private) and less than a block from the Engineer's Gate entrance to the park and Reservoir.