I think they all had a pretty good time and learned something new about European culture and history. Their favorite things? I know my little sister was loving the art and the nutella. My brother loved the drinking age and the other brother loves the city life and exploring the architecture. My mom loves the chocolate and the lifestyle and my dad was amazed by the history and architecture. Their least favorite thing? The French people. We encountered a whole slew of the stereotypical "rude/unfriendly" kind while they were here. It was unfortunate because they can be great people, but I guess clichés exist for a reason!
At the top of the Arc de Triomphe. Champs Elysees.
The Crypt at the Pantheon
Day at the Louvre
Viewing Paris from the top of the Arc
Feeding the birds.