See Wittenberg, Swinemiinde, Ahlbeck and Heringsdorf (Linz, 1893).
Closed in by mountains it flows past Linz in an unbroken stream - below, it expands and divides into many arms until it reaches the famous whirlpool near Grein where its waters unite and flow on in one channel for 40 m., through mountains and narrow passes.
The Danube between Linz and Vienna is renowned not only for its picturesque beauty but for the numerous medieval and modern buildings of historical and archaeological interest which crown its banks.
But the finest part of its whole course, as regards the picturesqueness of the scenery on its banks, is between Linz and Vienna.
The principal towns of Austria are Vienna (1,662,269), Prague (460,849), Trieste (132,879), Lemberg (159,618), Graz (138,370), Bruenn (108,944), Cracow (91,310), Czernowitz (67,622), Pilsen (68,292) and Linz (58,778).