✨A perfect example of a great Carolingian monastery, this convent was one of the most important in Europe from the 8th century until its secularization in 1805. Its library is one of the richest and oldest in the world and houses valuable manuscripts, including the oldest architectural plans on parchment ever found. Between 1755 and 1768, it was rebuilt in the Baroque style. The cathedral and the library are the main buildings of this exceptional architectural complex, witness to twelve centurie