- Dating back to the early 11th century, Kalmar is one of the oldest cities in all of Sweden. Kalmar Castle was constructed in 1160, but it is remarkably well preserved.
- Today, it is one of Sweden's best preserved renaissance castles and is open to the public.''Kalmar Castle: Sweden’s Royal Hub'' (Smithsonian Institution) /ref>.
- Originally only made up of a lone fortified tower, Kalmar Castle developed over time to become an imposing stronghold and castle.
- Kalmar Castle is also important in the history of Scandinavia, as it was the site of the Kalmar Union signing in 1397, when Sweden, Denmark, and Norway allied.
- Kalmar Castle remained a royal hub until 1658, when the Swedish frontier shifted south and the castle lost its strategic importance.
- Kalmar Castle suffered heavy damage during the Kalmar War of 1611-13 and was badly damaged by a fire in 1642.
- A visit to Kalmar is not complete without stopping by the castle. For all those architecture buffs that are into castles, Kalmar Castle will not disappoint.
- Kalmar Castle, located near the site of Kalmar's medieval harbor, has played a crucial part in Swedish history since its initial construction as a fortified tower in...
- After the border of Sweden was moved to Öresund Strait, Kalmar Castle began to decline. In 17-18 centuries royals only occasionally visited the castle.
- Kalmar Castle is made of stone and is located on the seaside of Kalmar City. It is surrounded by the sea and there is only one road leading to the castle.