30 Hudson Yards (also the North Tower) is a super-tall skyscraper in the West Side area of Manhattan. Located near Hell's Kitchen, Chelsea, and the Penn Station area, the building is part of the Hudson Yards Redevelopment Project, a plan to redevelop the Metropolitan Transportation Authority's West Side Yard. Since 2020, it has been the fourth-tallest building in New York City.
The building has a triangular observation deck jutting out from the 101st floor. This observation deck, at 1,100 feet, opened in March 2020 and is the second highest outdoor observation deck in the Western Hemisphere, after Toronto’s CN Tower Outdoor SkyTerrace (342m or 1,122 feet). (Chicago’s Willis Tower has an observation deck on its 103rd floor, at 1,354 feet; however, it is enclosed.) It offers new skyline views to the south and east of Manhattan, the surrounding boroughs, and New Jersey.