Como Cathedral is one of the most important buildings in the region. It is commonly described as the last Gothic cathedral built in Italy: construction on it, on the site of the earlier Romanesque cathedral dedicated to Santa Maria Maggiore, began in 1396, 10 years after the foundation of Milan Cathedral. The construction works, started under the supervision of Lorenzo degli Spazzi di Laino, did not finish until 1770 with the completion of the Rococo cupola by Filippo Juvarra. The imposing west front was built between 1457 and 1498 and features a rose window and a portal between two statues of Pliny the Elder and Pliny the Younger, natives of Como.
It is 87 metres long, from 36 to 56 metres wide, and 75 metres high into the top of the cupola. It has a Latin Cross floor plan with a central nave and two side aisles, separated by pillars, and a Renaissance transept, with an imposing cupola over the crossing. The apses and the choir are of the 16th century. The interior has some important tapestries, and others of the 16th and 17th centuries, made in Ferrara, Florence and Antwerp. There are also a number of 16th-century paintings by Bernardino Luini and Gaudenzio Ferrari.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.