I'm planning a family trip to Europe in late August to Labor day.

Kids (11 and 14) have never been, so I'd like to start off with a Grand Tour, 11 days, to give them a taste.

I'm having difficulty getting proper routing.

Current mileage levels:
UR - 600K
UA - 300K
BA - 260K + Companion Certificates
AA - 250K

DL, AmEx nearly empty after recent redemption...may take a little while to build up sizable balances.

Suggestions would be greatly appreciated.