Mount Zion Abbey (Berg Sion) is a Premonstratensian nuns' abbey built on scenic rocky spur above the Gaster valley in 1761 by the priest Joseph Helg. It was built along a pilgrimage route from the churches on Lake Constance to Einsiedeln Abbey. The Loretto Chapel was built in 1763-65. A year after the chapel was completed three sisters moved from Schussenried Abbey in Germany to the new Abbey. The Abbey's farms and private donations supported the residents and allowed it to grow rapidly and by 1778 there were 52 sisters living there. The unique longitudinal main building grew organically through several expansion projects.
Following the 1798 French invasion, the creation of the Helvetic Republic and then the Canton of St. Gallen in 1803, the Abbey went into decline. Under the Republic and the new Canton they lost many of their farms and were sometimes forced to billet troops. It rebounded between 1846-76 under the leadership of the matron Gertrude Hüsler from Steinhausen and confessor Benedict Frey from Wettingen Abbey. By 2000 there were 18 nuns living in the Abbey, under the Bishop of St. Gallen.References:
Roman Walls of Lugo are an exceptional architectural, archaeological and constructive legacy of Roman engineering, dating from the 3rd and 4th centuries AD. The Walls are built of internal and external stone facings of slate with some granite, with a core filling of a conglomerate of slate slabs and worked stone pieces from Roman buildings, interlocked with lime mortar.
Their total length of 2117 m in the shape of an oblong rectangle occupies an area of 1.68 ha. Their height varies between 8 and 10 m, with a width of 4.2 m, reaching 7 m in some specific points. The walls still contain 85 external towers, 10 gates (five of which are original and five that were opened in modern times), four staircases and two ramps providing access to the walkway along the top of the walls, one of which is internal and the other external. Each tower contained access stairs leading from the intervallum to the wall walk of town wall, of which a total of 21 have been discovered to date.
The defences of Lugo are the most complete and best preserved example of Roman military architecture in the Western Roman Empire.
Despite the renovation work carried out, the walls conserve their original layout and the construction features associated with their defensive purpose, with walls, battlements, towers, fortifications, both modern and original gates and stairways, and a moat.
Since they were built, the walls have defined the layout and growth of the city, which was declared a Historical-Artistic Ensemble in 1973, forming a part of it and becoming an emblematic structure that can be freely accessed to walk along. The local inhabitants and visitors alike have used them as an area for enjoyment and as a part of urban life for centuries.
The fortifications were added to UNESCO"s World Heritage List in late 2000 and are a popular tourist attraction.