What a particularly like about these pictures is that they illustrate how something as well known as the Eiffel Tower can look so different and refreshing through the application of a combination of three things:
1) A different camera angle (Low down, high up)
2) A different camera placement. (Further away, closer up, through an alleyway, on the tower)
3) A good eye for light (and the use of HDR where appropriate)
Look at all of these pictures and they exhibit one or more of the factors listed above.
I would also refer you to Stu Maschwitz who has his own view on the 'reasons' to take a photo.
