Basingwerk Abbey abbey was founded in 1132 by Ranulf de Gernon, 4th Earl of Chester, who had already brought Benedictine monks from Savigny Abbey in southern Normandy. Likely the first location of the abbey was not at the current location at Greenfields but at the nearby Hen Blas. The abbey became part of the Cistercian Order in 1147.
The abbey had significant lands in the English county of Derbyshire. Henry II gave the monks a manor near Glossop. The Monks' Road and the Abbot's Chair near the town are a reminder of the Abbey's efforts to administer their possession. In 1290 the Abbey gained a market charter for Glossop. The monks also got another charter for nearby Charlesworth in 1328.
By the 13th century, the abbey was under the patronage of Llywelyn the Great, Prince of Gwynedd. His son Dafydd ap Llywelyn gave St Winefride's Well to the abbey. The monks harnessed the power of the Holywell stream to run a corn mill and to treat the wool from their sheep. In 1433, the monks leased all of Glossopdale in Derbyshire to the Talbot family, the future Earls of Shrewsbury (1442).
In 1536, abbey life came to an end with the Dissolution of the Monasteries during the reign of Henry VIII. Its dissolution was made lawful by the Dissolution of the Lesser Monasteries Act and the lands of the abbey were granted to lay owners.
The abbey ruins are part of Greenfield Valley Heritage Park, and are managed by Cadw. The abbey marks the starting point of the North Wales Pilgrims Way.
Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.