One Dalton, the tallest residential building in Boston and home to Four Seasons Hotel and Four Seasons Private Residences, announced that the Council on Tall Buildings and Urban Habitat (CTBUH) honored the tower as a best tall building worldwide in its height category. One Dalton is the first and only building in Boston to be named a global winner by CTBUH, an organization that developed the international standards for measuring and defining tall buildings. CTBUH explores how increased urban density and vertical growth can support more sustainable and healthy cities.