Question: Were the buildings at 270 Park Avenue and 100 East 53rd Street both designed by Natalie de Blois?
Facts:
270 Park Avenue is a high-rise office building
270 Park Avenue was designed by Natalie de Blois
100 East 53rd Street is a residential skyscraper
Norman Foster is  the architect of  The building 100 East 53rd Street
Answer: no