Forte Sperone is the heart of Genoa's 19th-century fortifications, located right at the apex of the 'Mura Nuove' (new walls) from 1630, which to this day take the shape of mighty ramparts nestled in the hills behind the city centre.The fort's main entrance, with the Savoy coat of arms above it, is protected by a moat and a heavy gate that was once connected to a drawbridge via two chains; other important architectural elements include a well-preserved gunpowder magazine, located in the lower part of the fort, central barracks with large rooms, and a beautiful little chapel attached to the complex.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.