At number two on our year-end countdown of the tallest buildings under construction in New York is 740 Eighth Avenue, a 1,067-foot mixed-use supertall skyscraper in Midtown, Manhattan. Designed by ODA with SLCE Architects as the architect of record and developed by Extell, the 52-story structure will span 776,000 square feet with an 825-room hotel on the lower half and a public observatory with a drop ride attraction above. The property will also feature lower-level retail space, a restaurant on two of the upper floors, and a pool deck for hotel guests. Lendlease is the general contractor, WSP is the structural engineer, and Ancora Engineering is handling excavation and foundations for the project, which is located along Eighth Avenue between West 45th and 46th Streets on the border of Times Square and Hell’s Kitchen.