My first panography !
Have a look at the tutorials : on PhotoJojo (english) or on Virusphoto (french).
La Géode is an Omnimax theatre in the Parc de la Villette at the Cité des Sciences et de l'Industrie in Paris. It's a perfect sphere. (sources : Official website & Wikipedia).
- Added to the Cream of the Crop pool as most interesting.