There are 10,000 -plus campgrounds in Europe, so not a city or site that doesn't have one nearby as it is the preferred budget way to vacation or "holiday" for middle class Europeans. This photo was taken at one of our visits to Vienna, sharing favorite travel toys with two brothers from the UK.
I love this positve motorhoming Europe article from Transitions Abroad written by a tour guide who has tried every possible way of travel. Cynthia Harriman, author of Taking your Kids to Europe also highly recommends this route for families. Surprisingly, the small space is not that hard to adjust to since you have the outdoors as your living room, and if you go slow, it is also not very expensive for gas as one is usually parked, taking mass transit, bikes, even long ferry rides which saves tremendously.
One of our best decisions on our around-the-world trip as a family, was to buy a small European motorhome that we have used now for 6 years and plan to continue for many more. It's easy and cheap to keep there and gives us a perfect home/vehicle/storage unit for Europe that is also green and sustainable. If you explore our site by places visited, we almost always list the campsites we stayed at.