https://en.wikipedia.org/wiki/MetLife_Building
https://upload.wikimedia.org/wikipedia/commons/b/b6/Walter_Gropius_photo_MetLife_Building_fassade_New_York_USA_2005-10-03.jpg
https://upload.wikimedia.org/wikipedia/commons/5/5a/Park_Avenue_directly_heading_for_Helmsley_Building_and_Met_Life_Building.jpg
https://en.wikipedia.org/wiki/MetLife_Building#Construction
https://en.wikipedia.org/wiki/Grand_Central_Terminal#Related_structures