Paris is not just beautiful buildings but also full of stunning and sometimes even funny details.
(I guess a Finnish fashion designer who btw is the main men's wear designer for Givenchy, lives behind these massive red doors in Marais...)
Makes me smile!
I can highly recommend Hotel Eden if you like walking (I don't mean the stairs, there's a lift!) but the 15. district is a bit far from the main attractions. Of course, you can commute by metro (the nearest station is Vaugirard) or just take a taxi.