I slept last night and the night before with my window open to the Boulevard Montparnasse below and the sounds of the street. Where I am staying a busy commercial center (the view above is from my window) off one of the major Metro stops in Paris. But the city noise doesn't bother me nor keep me from sleeping. As someone who grew up in a small town, chose an even smaller town for college, and spent a lot of my childhood on my grandparents' farm out in the country, I seem to gravitate toward cities when I travel now. I feel comfortable walking the streets of urban jungles all around the world and like the bustle and array of cultural and other diversions available. And public transportation can't be beat, especially where it's well implemented, as is the case here in Paris.