COLOGNE, KOBLENZ,BOPPARD,ST GOAR AND BACHARACH. The river Rhine travel though various countries and regions along its 1320 Kms. The Rhine is the most transited river in the world . However the most beautiful part is called "Romantic Rhine" or Middle Rhine in Germany. In 2002 UNESCO declare this part "World Heritage Site", because the rich history , middle age castles , fortress and nice villages. Along with the city of Cologne with its magnificent Cathedral, another UNESCO world Heritage are some of the places that must to be seen.