I have been to Paris three times and have spent almost 25 days there. My favorite part of the city is the Notre Dame Cathedral. While visiting, sometimes I would just sit in the little garden behind it and read or hang out. Very nice.
I am sure you have all been watching/reading the news. Such a terrible tragedy.
Here are just a few posts I have done on the city (I had over a half a dozen posts in 2015 alone):
Anyway, here are some photos I took over the three visits (2001, 2002, 2011). Click on a photo for more detail. This will also allow you to scroll through.