Abbey of St Gall.
The Abbey of St. Gall in Switzerland, a UNESCO World Heritage Site, is a remarkable testament to over 1,200 years of history and culture. Founded in 613 AD by the Irish monk Gallus, it became a pivotal center for arts and sciences in medieval Europe, receiving support from rulers like Charlemagne. Its architectural ensemble features a stunning late Baroque cathedral, designed by Peter Thumb, along with an exquisite library known for its Rococo decor. The library houses nearly 160,000 volumes, including precious handwritten manuscripts and the earliest-known architectural plan, the "Plan of St. Gall." The abbey stands as an enduring symbol of spiritual and intellectual heritage, captivating visitors with its historical depth and artistic beauty.