Travelling with children

Would you take your children on a month long tour of Europe?
I wouldn't have even entertained the thought; I could just imagine the long drives on the road in between countries, "I'm bored...", "Are we there yet???...", "I need to go to the toilet..." if you have children you know just what I mean.
And do they really appreciate the history of Europe? Will they eat the foods or just want McDonalds? Tours can be full on enough without having the added burden of children and their needs and whims.

But on my recent 27 day tour through the sites of Europe there was a father and his wife that did just that, with 2 teenage daughters and one young 8 year old boy they toured Europe as part of a tour group for nearly a month, was it tough? Only they will know (I do hope they read this and add their own experience), for the rest of us in the tour group they were all great happy easy going children.

The children did not noticeably fight or argue, or complain. Actually the adults on the tour complained more, myself included.
I can only imagine what it must have taken to organize the entire family to be on time each day for the coach; there are so many things to sort out, meals, beds, clean clothes, wash times, shopping, luggage repacking, and not to mention the all important rest and sanity time.

I can only put it down to great parenting.

What does it take, to have great traveling companions of your own children?