
The Danube is Europe's second-longest river, and arguably its most romantic. Take a trip down the entire picturesque length of the Danube from Germany to Romania. (Attila Kisbenedek/AFP/Getty Images)

St Nikola on the Danube, Austria

Vienna and the Danube by street light
The Danube passes through Austria's gorgeous capital, Vienna.

Entering Slovakia
The Danube crosses into Slovakia and through its capital, Bratislava.

Danube river mist in Golubac, Serbia

The final stop: Romania
The Danube finally enters Romania, the final country it will visit on its long journey

Pelican colony on the Danube Delta

Flooded forest along the Danube