I have seen Danube River by Regensburg in Germany a lot of times already. but cruising in Danube River is one thing I have not experience yet. I have to convince my husband to cruise this river next time..Hopefully when my sister will visit Europe this year. Just sharing this photo of Danube River, the second largest river in Europe. You can see from afar the historical Steinerne Bridge in Regensburg..my photo is not so clear here because my husband took the photo against the light..taken last Sunday June 28, 2009.