New York City’s annual Archtober festival, which celebrates the city’s defining architecture, has returned for its 15th year. This year’s theme, “ Shared Spaces ,” invites participants to rethink how New Yorkers “move, connect, and live together.” As part of the festival, Archtober’s Building of the Day series lets visitors embark on architect-led tours of featured projects across all five boroughs. Ahead, discover a selection of tours not to be missed, from the transformation of Chelsea’s historic Terminal Warehouse to the nation’s largest office-to-residential conversion in the Financial District.

1. Manhattan West

After decades in the making, Brookfield Properties officially completed Manhattan West in January 2024. Designed by Skidmore, Owings & Merrill (SOM), the mixed-use

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