Not far from the center of Paris lies this fantastic art gallery. It is an astonishing building and has an amazing collection of works. The ticket you buy for the museum usually allows you free entry into the neighbouring theme park!
The majority of creative agencies in Paris are located along Canal Saint Martin so everyday the banks of the canal are full of artists and creative people enjoying their lunch break. If one is lucky enough to be around the canal on a sunny day its the best place to enjoy a drink.