The ancient charm and catholic background prompts many visitors to see the city as a conservative stronghold. But there are other forces at work in this city of 300,000 residents: 30,000 students, good Franconian white wine and more.First mentioned in A.D. 704 as 'Vurteburch', the city on the river Main is an architectural treasure trove. There are innumerable buildings and monuments of historical interest reflecting a range of epochs. Hovering above town, for example, is Marienberg Fortress - the current castle was built around 1200 - from which the bishops used to rule over their 'lowly subjects'. Just below is the oldest bridge over the river Main, and the famous "Residenz" Palace, a UNESCO World Heritage site.