Danube conservation and touristic development of the Danube region. In medieval Regensburg, with its maintained old town, stone bridge and cathedral, the Route of Emperors and Kings begins. It continues to Engelhartszell, with the only Trappist monastery in Austria. Further highlight-stops along the Danube include the "Schlögener Schlinge", the city of Linz, which was European Capital of Culture in 2009 with its contemporary art richness, the Melk Abbey, the university city of Krems and the cosmopolitan city of Vienna. Before the Route of Emperors and Kings ends, you pass Bratislava and Budapest, the latter which was seen as the twin town
Commissions of the Danube River Commissions of the Danube River "See Internationalization of the Danube River for events before 1856." The Commissions of the Danube River were authorized by the Treaty of Paris (1856) after the close of the Crimean War. One of these international commissions, the most successful, was the European Commission of the Danube, or, in French, Commission Européenne du Danube, the CED, which had authority over the three mouths of the river — the Chilia in the north, the Sulina in the middle, and the St. George in the south and which was originally designed to last for only two years. Instead,