The Aachen Cathedral, built on the former Palatine Chapel of the Palace of Charlemagne (800-814), is the most important architectural example of the Carolingian Renaissance. The Aachen Cathedral is a heterogeneous structure, influenced by many stylistic epochs, characterized by numerous breaks and extensions. To symbolically anchor their reign in the wake of that of Charlemagne, a large portion of the rulers of the Holy Roman Empire, between 936 and 1531, were crowned here.
Aarhus Cathedral was built in the 13th century in Romanesque style. Damaged by a fire in 1330, the cathedral was rebuilt according to Gothic canons from the end of the 14th century until 1500.
First women's abbey in Saintonge, the Ladies' Abbey was founded in 1047. These powerful Benedictine moniales printed currency and had a taste for business.
The Abbey of Our Lady was founded in 1878 on the 11th century "Sainte-Marie" church, associated with a Benedictine monastery. The building was then enlarged in the 16th century, but by the end of the 19th century it had become so worn out that it was not considered possible to renovate it.
The Abbey of St. Gall, called Kloster St. Gall (founded in 719, abolished in 1805), is the oldest monastery in Switzerland. Its Rococo library is one of the most important monastic libraries in the world.
The Abbey of Santa María la Real de Las Huelgas, is a monastery of Cistercian nuns of San Bernardo. It was founded in 1187 by King Alfonso VIII of Castile and his wife Leonor de Plantagenet. It houses works of great value, including some of the oldest stained glass windows in Spain.
The abbey Saint-Victor of Marseille was founded in the 5th century by Jean Cassien, near the tombs of martyrs of Marseille, among whom Saint Victor of Marseille († in 303 or 304). For more than 1,500 years, Saint-Victor is one of the high places of Catholicism in the south of France, and although the monastery was dismantled at the Revolution, the church is still assigned to worship. The abbey is classified as a historical monument since 1840.
St. Boniface is a Benedictine monastery founded in 1835 by King Ludwig I of Bavaria in a Byzantine style.
The Achel Abbey was first built in 1656 as a chapel and soon became a hermitage (1686). In 1846 the building was converted into a priory, and to a Trappist abbey in 1871.
This 14th-century cathedral was built on the site of a former 12th-century Romanesque church and an even older chapel. It was the site of where the reformation began in Hanover. The church was destroyed in an air-raid during the Second World War, leaving only the tower and some walls. Today it stands as a war memorial, featuring a sculpture, dedicated in 1959 and a peace bell donated from Hanover's sister city, Hiroshima, Japan.