The Palais Royal was built in 1629 by Cardinal Richelieu, an influential French minister. It became a royal palace after the cardinal bequeathed the building to King Louis XIII. Louis XIV, the Sun King, spent his youth here before moving to the nearby Louvre and later to Versailles.
Between 1871 and 1874, Louis-Philippe d'Orléans, cousin of King Louis XVI expanded the palace by adding arcades and shops. At the time the galerie d'Orléans, the colonnaded space that separates the garden from the cour d'honneur also housed gambling dens, cafes and there were even prostitutes of both sexes.
The Palais Royal was mobbed during the revolution of 1848 and was almost destroyed by fire in 1871. Fortunately the basic structure survived. After its restoration in 1876 the building was handed over to the government. It currently houses the Council of State and other government offices.
The palace is not open to the public, but you can visit the courtyard and the garden. The courtyard, known as Cour d'Honneur, is dominated by a large sculpture by Daniel Buren, installed in 1986. It consists of 280 black and white striped truncated columns. Adjacent to the courtyard is the Galerie d'Orléans, a courtyard flanked by two colonnades. It is home to two modern fountains created by the Belgian sculptor Pol Bury.
The galerie d'Orléans leads to the Jardin du Palais Royal, the palace garden. The garden is formally laid out around a central fountain. It is a quiet refuge in the heart of the city. The current garden is somewhat smaller than originally designed in 1630 for Cardinal Richelieu due to the construction of sixty arcaded buildings on three sides of the park by Louis-Philippe d'Orléans in 1874. The buildings around the garden now house restaurants, deli shops and galleries.References:
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.