Unesco description
The Wachau is a stretch of the Danube Valley between Melk and Krems, a landscape of high visual quality. It preserves in an intact and visible form many traces – in terms of architecture, (monasteries, castles, ruins), urban design, (towns and villages), and agricultural use, principally for the cultivation of vines – of its evolution since prehistoric times.

Received through Postcrossing on 23.04.2011
On this card you see Dürnstein, a small town on the Danube river in the Krems-Land district, in the Austrian state of Lower Austria. It is one of the most visited tourist destinations in the Wachau region and also a well-known wine growing area. The town gained its name from the medieval castle, Burgruine Dürnstein, which overlooked it. The castle was called “Duerrstein” or “Dürrstein”, from the German duerr/dürr meaning “dry” and Stein, “stone”. The castle was dry because it was situated on a rocky hill, high above the damp conditions of the Danube at the base of the hill, and it was built of stone

Received through Postcrossing on 25.06.2018
The impressive abbey you see on this card is called the Melk Abbey (Stift Melk). It was founded in 1089 when Benedictine monks were given a castle and transformed it into the Abbey. A school was founded as well in the twelveth century.

Trivia:

In ¨The Name of the Rose¨, Umberto Eco named one of his protagonists Adso of Melk as a tribute to the abbey and its library.