Europe's most famous "site" : Blackpool Tower in France.

Europes's most famous "sight" : A Real Madrid Shirt.

Eiffel Tower could be confused with Blackpool Tower (http://www.theblackpooltower.co.uk/facts.php). Blackpool Tower is not quite as tall but of a very similar design and built only five years after it's french counterpart. (PS Both are equally ugly!)

<i>Big Ben and the Colosseum are easily recognized but closely linked with their home countries, whereas the Eiffel Tower is a sort of generic symbol for travel and exotic foreign locales independent of its actual location in France.</i>

It depends where the target market is based. I don't think it would make many Brits think 'exotic travel' as trips to Paris are sold at the cheap end of the market - travelling overnight by coach or cattle class in a budget airline. Brits would associate 'exotic travel' with images of sugar white sands fringed with palm trees.