Located at the Rhine's intersection with the Nederrijn, Arnhem is a city in the eastern Netherlands that's most famous for its role in World War II. During the Battle of Arnhem, Allied forces failed to secure three bridges -- including one that spans the Rhine at Arnhem -- which would have allowed them to advance into Germany as part of Operation Market Garden. If you're on a European river cruise that includes this port stop, you'll find yourself sailing under the famed bridge, which gained even more notoriety in the 1977 movie "A Bridge Too Far."
You'll likely spend your time ashore exploring artifacts at the Airborne Museum or unmarked graves at the Arnhem Oosterbeek War Cemetery, both located in Oosterbeek, about 10 minutes from Arnhem. This is a perfect port for history buffs, and although the tours aren't strenuous, they can be solemn. Another option is the Open-Air National Heritage Museum, which allows visitors to see how life in the Netherlands used to be, via preserved homes, bridges and windmills, as well as demonstrations of everything from weaving to blacksmithing.