The rue Commines apartment is in a circa 1811 stone building on a quiet street in the Marais. This is central Paris: safe, vivant, full of history and in the heart of the current art scene. It is a 5-minute walk to the Place des Voges, Picasso Museum and open-air market, 20 minutes from Notre-Dame, in a quartier known for its specialty shops and wonderful little restaurants. An elevator takes you to the one-bedroom, 30-square-meter pied-a-terre on the top (5th) floor, with original-beams ceiling and a mix of old charm and modern conveniences.   We welcome responsible guests who love Paris. $800/$900 per week. ($115/$130 per day; 5-day minimum) (click on map for bigger view)