Probably the highlight of the interior, in terms of medieval atmosphere, is the well room. The well itself is dry, but the chamber is suitably damp and dark. This is the lock on the old, metal-sheathed door.
like Holland and parts of Belgium - there isn't very much stone, so they built with brick. In some cases there was plenty of stone, but the architectural shapeliness of brick was more appealing. Hämeenlinna is a perfect example of this type of castle, and is somewhat rare for Scandinavia.
Häme was originally built as a stone garrison on a small island, sometime around the year 1300. The walls, at that point, were low and makeshift. The purpose of the fort was to enforce new taxes after the region had been brought under Swedish control. Almost nothing is known about this early period, though, and there's a lot of debate about when the structure was actually assembled. The brickwork mostly covers up the older stone, which was rough and not well cut. During the late 14th century, as the fortress was being enlarged, redbrick was used instead of the native greystone so that the overall effect would be more visually dramatic and impressive. In Finland - a conflict area at the time, and not very well off - this was almost unheard of, but it was common practice in other Swedish holdings across the Baltic. Castles like Cēsis and Sigulda in Latvia, as well as Trakai in Lithuania, were built in brick because of a combination of vogue and necessity.