I went with the tower.
I noticed that the picture was a bit disorienting at first, probably because it was photographed from an odd angle that makes the base look larger and the top look shorter and thinner. I think the angle works because it is looking down one of the curved vertical section of the tower, which makes the whole curved vertical section look shorter, and by comparison the rest of the base was far away. (This is a bit of a ramble, otherwise nothing stuck out except that it was the Eiffel tower, and the strange angle is hard to get past.)
Edit: Actually, another disorienting thing is possibly that the ground is sloped, and the skyline doesn't appear, which makes it seem as if the ground is curving away. (noticed it after looking a second time.)