as masto wrote in another comment, a lot of these "public private" spaces are inaccessible to the public. https://www.nytimes.com/2017/04/19/nyregion/public-spa

as masto wrote in another comment, a lot of these "public private" spaces are inaccessible to the public. https://www.nytimes.com/2017/04/19/nyregion/public-space-trump-tower.html https://www.nytimes.com/2017/04/19/nyregion/public-space-tru... Here's a site that lists the ones in NYC https://apops.mas.org/ https://apops.mas.org/ (I don't have any first hand experience with these since I don't live near NYC)