We stopped in or near five towns or cities, and were taken by bus to see the main tourist sites. This is Cologne Cathedral. The plaza in front is simply too small to get a complete picture of the building, one of the few to survivie WWII in the city - the downtown is almost entirely post-war. And all of these old cathedrals are constantly undergoing restoration; it's hard to find one without some scaffolding.
I mentioned we were a bit disappointed in the river cruise. We did enjoy it of course, but it just wasn't the right fit for us. Inevitably we compared it in our own minds with the other two organized tours we've done, an Adventure Canada cruise around the outer islands of Scotland, and a Smithsonian Institute tour of Italy, All three were approximately the same total price, but the other two had a much stronger educational element, which I naively assumed would be included to some extent on this trip. It wasn't.
The other trips were also longer, the Italy trip nearly 3 times as long, so the price per day was dramatically different. And they were also much smaller groups, so we found the 180 passengers made this a big ship; for most it was a small ship in comparison to the ocean cruises they were used to! For us, the river cruise just wasn't worth the price we paid. Most of our travelling has been on our own, and in comparison, this trip was rather dull! But wait til you hear about the second half of our trip - it was worth every moment!