Columbus Center, a winning proposal for the redevelopment of the New York Coliseum site, is situated on four acres at Columbus Circle, adjacent to Central Park. The project incorporates offices, residences, a hotel, a retail center, and a cinema complex. The offices include the headquarters of Salomon Brothers and a sophisticated trading center.

The organization of the complex and its network of public spaces are designed to reinforce the civic image of Columbus Circle and to enhance the street's public life. Set back in a V-shape, two towers surround a 190-foot garden atrium. The towers' separation highlights the central axis of 59th Street and admits a generous amount of light into each floor. The two towers are structurally independent but share horizontal forces through regularly spaced five-story braces. The towers, one 62 and the other 69 stories in height, connect by a bridge at the 39th level and rest on a base that encloses a four-story garden atrium. A great public galleria follows the curve of Columbus Circle.

Secondary tower-like facets comparable in scale to the apartment towers along Central Park West form a transition between the urban scale of the Upper West Side and Midtown. Setbacks in the two main towers accommodate five-story greenhouses that provide an amenity for the office workers and create a strong visual connection with Central Park.

Work on the center was halted due to the financial downturn and the withdrawal of Salomon Brothers.
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Located along the Hudson River not far from the former World Trade Center, the project was envisioned to solve the city's housing shortage. The master plan accommodated affordable housing for approximately 400,000 people. Safdie's proposal included 14,100 apartments, several schools, a library, a hospital, and other amenities covering 91 36.4 ha. The prefabricated modular construction system was also explored for this project.

Moshe Safdie conceived the Beit Clal Conference Center as a building bridging the water. The site for the project was located in a naturally wooded area with a pond, formed from an existing stream in Pomona, New York. The overall complex was an "L-shape" with the north-south spine contoured along the pond's edge and the east-west spine spanning the pond as a bridge structure. The center was designed to serve as a "think-tank" - a meeting place for the exchange of knowledge in training and leadership for the Jewish community.

Letter from S.E. Dawson to John William Dawson, written from Montreal.

Letter from B.D. Bagley to John William Dawson, written from New York.

Letter from Robert F. Sample to John William Dawson, written from New York.

Letter from B.D. Bagley to John William Dawson, written from New York.