So, here is a brief summary (and I know it might seem a little crazy, but we're really trying to see as much as we can on this trip --- we can do detailed trips later)

July 11 - Leave ATL
July 12 - Arrive Paris - 9 AM
July 13 - Paris
July 14 - Leave Paris to Barcelona
July 15 - Leave Barcelona at night to Ibiza
July 16 - Leave Ibiza to Rome
July 17 - Rome
July 18 - Rome
July 19 - Leave Rome to Venice
July 20 - Venice
July 21 - Venice
July 22 - Leave Venice to Zurich
July 23 - Zurich
July 24 - Leave Zurich to London
July 25 - London
July 26 - Leave London (5PM) to home

I do have the option of leaving ATL on July 10 and arriving Paris 9 AM July 11 (giving us one extra day but that means more $$ and don't know if it's worth it).

Any advice is much appreciated! Thanks in advance!