The poem shows you Charlie's route through Paris. Which letters do you meet on the way?
If you take the correct route and note the letters on the way then you will get a website: www.la-tour-eiffel-paris.fr
You will see the original picture of the Eiffel Tower there. Can you see the differences?
There are exactly five mistakes on the picture. The C on the top of the tower, the A in the middle of the tower, the N in the middle of the base and the D and LE next to it on the right. This gives you the clue. CANDLE. Are you ready for the next puzzle?