King John's Castle - a medieval fortress in the Irish city of Limerick. It is located in the historic center of the so-called King's Island is one of the most important and popular attractions in Limerick.

The second half of the 12th century was marked by large-scale invasion of the Normans in Ireland which, in fact, marked the beginning of British colonization of the Emerald Isle. In 1174, it is on the River Shannon and it is at that time a part of the Kingdom of Thomond, Limerick was burned almost to the ground, but after winning the Anglo-Normans fairly rapidly rebuilt. The strategic position of Limerick largely determined his fate, and soon the city became a major trading center. In order to protect Limerick already in 1200 by decree of King John began the construction of the castle, which lasted nearly a decade. In the following centuries the castle was repeatedly extended and rebuilt, restored after numerous sieges, becoming as a result of a powerful fortress.

Today, King John's Castle - an important historic monument and an excellent example of medieval fortification architecture. After extensive renovation in 2011-2013 was in the castle is a museum, which exposition with modern technology perfectly illustrates the turbulent history of Limerick. Full plunge into the atmosphere of a bygone era, you can, walking through the castle courtyard, where you will see a variety of items and accessories of life of medieval Limerick and rising ramparts, will be able to enjoy breathtaking panoramic views. It is necessary to pay attention to the remains of buildings from the Viking Age, found in the castle during the archeological excavations. It is in the castle and a small cozy cafe where you can relax and share the experience of entertaining after a "journey" through time.