Tuna river from Black Sea to Linz

The river Tuna has a significant place in the history of Ottoman Empire and Europe.
The Turkish riders wandered around Tuna for centuries.

Vienna is the last point Ottoman Empire reached withing Europe. Linz is beyond it. I was surprised that Tuna lies in Linz and reaches out to Black Sea. Tuna is a very long river.

Linz is a small but nice city. Its museums are magnificent and authentic. People in Linz are nice. You can enjoy the view from Castle Museum. You can sit and watch Tuna with an enjoyable graze