Can you see what it is yet? Not to get too Rolf Harris on you, after all the title of this post probably gave the game away but do you know what this building is? What you can see is the Eiffel Tower from above and this marvellous website gives you the whole city in an amazing panorama. You can spin round and round, zoom in to almost street level and experience the city in a way that you are unlikely ever to in real life.
Awesome, or as the French might have it - magnifique!