Seili (Själo in Swedish) is a small island in the Archipelago Sea. The island is known for its church and nature, a research institute and a former hospital. The first hospital on Seili was established in the 1620s. Before that there were two farms on the islands belonging to the Crown and thus available when the authorities looked for a suitable island to which the leper hospital at the outskirts of Turku could be moved.
According to a Royal Decree in 1619 by King Gustav Adolf of Sweden, the buildings of the hospital in Turku, with the exception of the chapel, were burned down and the inmates transported to Seili. The Selihospital for lepers was dedicated to St George. The last leper patient died in 1785, and the establishment on Seili became a hospital or a place of confinement for mentally afflicted people until 1962. The hospital was self-sufficient with agriculture, and fishing. The present-day buildings on the island, with the exception of the chapel, date from the 19th and the 20th centuries, and most of them have been built for the mental hospital.
The wooden chapel of Seili was built in as a replacement of the Church of Saint George, the former hospital church which had been transferred to Seili from Turku in the beginning of the 17th century. The museum church has a cross-shaped plan and it is made of pinewood grown in archipelago islands. The original untreated wooden surface can still be seen inside the church and nowadays it is beautifully patinated by passed centuries. The only colourful objects in the otherwise quite barren but impressive interior are the pulpit decorated by C.J. von Holthusen and the modernistic altarpiece The Storm on Lake Genesaret painted by the Finnish artist Helge Stén.
Currently the island hosts the Archipelago Research Institute that is a part of the University of Turku. The island is open to the public in summertime and there are guided tours available. During the summer season, the connecting ferry m/s Östern operates on the Nauvo-Seili-Hanka (Aasla, Rymättylä) route. Therefore, Seili is accessible from both Nauvo and Hanka.
The Château de Chaumont was founded in the 10th century by Odo I, Count of Blois. The purpose was to protect his lands from attacks from his feudal rivals, Fulk Nerra, Count of Anjou. On his behalf the Norman Gelduin received it, improved it and held it as his own. His great-niece Denise de Fougère, having married Sulpice d'Amboise, passed the château into the Amboise family for five centuries.
Pierre d'Amboise unsuccessfully rebelled against King Louis XI and his property was confiscated, and the castle was dismantled on royal order in 1465. It was later rebuilt by Charles I d'Amboise from 1465–1475 and then finished by his son, Charles II d'Amboise de Chaumont from 1498–1510, with help from his uncle, Cardinal Georges d'Amboise; some Renaissance features were to be seen in buildings that retained their overall medieval appearance. The château was acquired by Catherine de Medici in 1550. There she entertained numerous astrologers, among them Nostradamus. When her husband, Henry II, died in 1559 she forced his mistress, Diane de Poitiers, to exchange Château de Chaumont for Château de Chenonceau which Henry had given to de Poitiers. Diane de Poitiers only lived at Chaumont for a short while.
Later Chaumont has changed hands several times. Paul de Beauvilliers bought the château in 1699, modernized some of its interiors and decorated it with sufficient grandeur to house the duc d'Anjou on his way to become king of Spain in 1700. Monsieur Bertin demolished the north wing to open the house towards the river view in the modern fashion.
In 1750, Jacques-Donatien Le Ray purchased the castle as a country home where he established a glassmaking and pottery factory. He was considered the French "Father of the American Revolution" because he loved America. However, in 1789, the new French Revolutionary Government seized Le Ray's assets, including his beloved Château de Chaumont.
The castle has been classified as a Monument historique since 1840 by the French Ministry of Culture. The Château de Chaumont is currently a museum and every year hosts a Garden Festival from April to October where contemporary garden designers display their work in an English-style garden.