Wachau Valley with a stop in Durnstein

Wachau Valley is considered the portion between Krems and Melk in lower Austria. 
"The Wachau was inscribed as "Wachau Cultural Landscape" in the UNESCO List of World Heritage Sites in recognition of its architectural and agricultural history, in December 2000"  (Source) 

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 Duernstein castle, which overlooked it. The castle's name derived from the German duerr/duerr, meaning "dry", and Stein, "stone". The castle was dry because it was on a rocky hill, high above the damp conditions of the Danube at the base of the hill, and it was built of stone. The modern town stands between the castle and the river

Walk the main street and enjoy the cute little streets 

Stop at the end for a view over the Danube 

Buy Apricot based products 

Melk

A totally worth stop is in Melk. 

"Melk Abbey is a Benedictine abbey above the town of Melk, on a rocky outcrop overlooking the Danube river." (Source)

Interesting fact: "In his novel The Name of the Rose, Umberto Eco named one of the protagonists "Adso of Melk" as a tribute to the abbey and its famous library." (Source)