Junkarsborg was a medieval castle in Raasepori. There are no documents left of castle, but archaeologists suppose that the castle was built in the early 14th century and was used until the beginning of the 15th century. Iron and bronze items, ceramics and silver coins have been found from the castle site. Remains refers to Rheinland in Germany and one theory believes that the castle was originally built by the Danish soldiers.
Nowadays there are only rectangular earth walls left. The ruins are on a forested island in the middle of the Svartå river and can only be reached on foot. Some reconstruction work has been done during 2005-2006 to improve the access to the island and its visual appearance.
Reference: Wikipedia
Sirmione castle was built near the end of the 12th century as part of a defensive network surrounding Verona. The castle was maintained and extended first as part of the Veronese protection against their rivals in Milan and later under the control of the Venetian inland empire. The massive fortress is totally surrounded by water and has an inner porch which houses a Roman and Medieval lapidary. From the drawbridge, a staircase leads to the walkways above the walls, providing a marvellous view of the harbour that once sheltered the Scaliger fleet. The doors were fitted with a variety of locking systems, including a drawbridge for horses, carriages and pedestrians, a metal grate and, more recently, double hinged doors. Venice conquered Sirmione in 1405, immediately adopting provisions to render the fortress even more secure, fortifying its outer walls and widening the harbour.
Thanks to its strategical geographical location as a border outpost, Sirmione became a crucial defence and control garrison for the ruling nobles, retaining this function until the 16th century, when its role was taken up by Peschiera del Garda.