Mainz
Halfway between Lake Constance and the North Sea, the Rhine meets Mainz. This carnival city is known for its cheerful atmosphere and its hospitality. Why not go for a stroll along the tranquil riverbank or enjoy a good glass of local wine while you’re there? You could also visit the city’s main landmark: Saint Martin’s Cathedral. It boasts one of the richest church interiors in the Christian world. Another important building in Mainz is the Kurfürstliche Schloss (Electoral Palace). This is a prime example of the German Renaissance style of architecture.