Best roof top bars/cafes in Paris

There's a lovely -- but expensive -- one on the top of the Hotel Raphael on avenue Kléber - right across from Kléber metro on line 6 (and on the walk from Trocadero to the Arc de Triomphe). You can practically reach out and touch the Arc de Triomphe, and the Eiffel Tower is away on the other side.

Photos and info here:
http://www.leshotelsbaverez.com/en/home/raphael/dining/

Again -- you pay for the privilege, but oh what a privilege!

There is a roof top café at the Galleries Lafayette department store. Nice view of the roof of the Opera Garnier, Eiffel Tower, and around the corner, Sacre Coeur.

The Pompidou has a roof top restaurant with an outdoor terrace from which I took some great photos. "Georges" is its name.

Thank you all!

Printemps department store also has a casual outdoor, rooftop cafe, that has great views of the city. Inexpensive place to have beer, coffee, light snacks. I love hanging out there on a nice day. One day I was there a DJ was playing cool ambient electronic music that fit the scene perfectly.

I have not dined in their rooftop restaurant or café, but I have enjoyed the architecture, museum, and view at the Institut du Monde Arabe. You don't need a museum ticket to visit the Monde Arabe roof, versus at the Pompidou you buy a €3 roof ticket, if not visiting the museum.