Why this college

Hey, I’m applying to summer programs at University of Chicago, Emory, Yale, stanford and UPenn. All through a program called questbridge. I’m having a little trouble answering the “why this college” questions. I was wondering if anyone could help. I’ve tried some research but am unable to find “real” answers…most of the stuff I find have to do with the weather, social life, new library, etc… I’m trying to find reasons that make the university stand out/special. For example, Stanford is very entrepreneurial. Even more, it’s located near silicon valley. I’m looking for things like this. Something that makes the university different from other universities. If you know what makes one of the 5 colleges I listed unique be sure to share your opinion!