I am planing a European trip with two teenagers. We are looking to spend 2 days in Paris, then 2 days in the French Riviera, before spending another 2 in Rome and another 2 in Venice and ending our journey in London. I have done Paris in a day and half before (I have lots of energy). I would like to visit the Russian orthodox Church, Villa of Rothschild, Mattise & Chagall and Picasso Museums in the Riviera. Is this possible and what would be the cheapest and safest way to travel? Any suggestions are welcome.