I personally wouldn't buy anything here, but I cam...

I personally wouldn't buy anything here, but I came in front of the building. That is really very nice. Both the dome and the railings are very beautiful. There is also a kind of extended balcony that you can use for free (with a queue) so that you can experience the space even more from the height from the center. Upstairs you can (also free) on the day. Very nice view because it is so right in the center. You can see the Eiffel Tower, the Sacre Coeur and much more