Museum Abbey Library in St. Gallen

You're standing at the Abbey of St. Gallen, and tucked inside this monastery complex is one of the oldest monastic libraries in the world. In German it's called the Stiftsbibliothek. Together with the abbey, it became a UNESCO World Heritage Site in 1983. The reason? From the eighth century until 1805, this monastery was one of the most important cultural centres in Europe.