Since the settlement of man, sources of water have played a significant role in supplying human settlements with fresh water.

Another highlight for us was the visit to the Old Town Hall of Rottweil, about which is first documented in 1321.

Since we learned that we have to be in Zurich on Saturday afternoon for an interview and for the concert with Loreena McKennitt in the evening, we decided on Thursday evening, together with Patrick,

The guilds that were so important and powerful during the Middle Ages have long since passed away, but their signs in the form of symbols still exist today high above the shop windows and doors of shops and businesses, which we noticed especially when strolling through the city in Rottweil.

And again, our hosts, Heidi and Rainer, had come up with an interesting bike tour that was to guide us through the wonderful Lower Remstal to the city of Waiblingen, which is a medieval town known for its connections with the royalties of Staufer. Especially the Old Town area, with its magnificent half-timbered houses, points to the long history of the city, which was particularly important in the Middle Ages.

Deeply impressed by the huge park of the Ludwigsburger Residential Palace, which we got to know during the street music festival, we had started to a tour of the city, which should bring us further peculiarities of this planned town at the beginning of the eighteenth century together with Heidi and Rainer.

Our first visit to Waiblingen by bicycle through the Lower Remstal had led us into the mediaeval town center of Waiblingen, which had a lot of interesting half-timbered houses, remains of the city wall and the High Observing Tower on the Zwinger, which are really visitable places, not to forget the Park-like landscape on the Remsinsel (island).

Our tours along the Celtic cycle path finally brought us to the Hohenasperg, thecastle mountain, which was already settled during the Stone Age and by 500 BC was even a Celtic princely seat with an escape castle.

After our visit of the Celtic Museum in Hochdorf, Rainer led us along the biking route to the outskirts, where there is a huge Celtic hilltop, which was reconstructed after the excavations.

Very extensively we had visited archaeological sites from Greek and Roman antiquity during our camper-cultural trip, had discussed their dissemination areas and cultural achievements, and had repeatedly encountered the Celts and their cultural assets.

Although the Eurobike and Outdoor Fair were the official occasion of our visit to Friedrichshafen this time, the central city on the northern shore of Lake Constance and the county seat of the Lake Constance district has much more to offer.

The repetition of a television program on the subject of "extraordinary activities" had made us aware of the activities of Sepp Bögle who is building stone-stacks to small art works without adding any glue or other helping materials in Radolfzell during the summer.