Thank you so much everyone for your input. I really appreciate it. I'm mainly looking forward to the museums, the people and fresh non American food.
I will take note of all the wonderful tips. I added two days in London on my own and two in Rome (for travel to Tuscany). The other 12 days are with the group, but it's very flexible and has plenty of free time. Versailles is definitely on my list!
Kate, I'm traveling without my daughter this time. LisaRose will understand ;). We need a break from each other in the summer. This is sort of a splurge for me as I made some good work decisions and normally I'm a major saver, so I'm treating myself this time.