That first one made me go 'whoa!' as well. Love it (especially as all the roads lead to the Arch). And the composition of the third is lovely, with the gargoyle in the foreground and the Eiffel Tower in the background
3 great photos there, numbers 1 and 3 (especially 3) being my favorites. Fantastic composition and framing plus the choice of b&w really suits all of the images.
How did you get the angle on the Arc de Triomphe at that height? Was the first shot from the Eiffel Tower with a Tele lens by any chance - just curious..