The Seagram is clearly one of the great landmarks of NY. My aunt was the project manager and selected Mies Van Der Rohe to build the Seagram. So that is my favorite building both for professional and personal reasons. The architecture is so clean and so modern even though it was built close to 50 years ago. I think the building was open in 1958 and it still is the most classic modern building 50 years later. Mies was just an icon in the architectural world.