Enniskillen Castle, situated beside the River Erne in County Fermanagh, was built almost 600 years ago by the ruling Gaelic Maguires. Guarding one of the few passes into Ulster, it has been strategically important throughout its history. Today, the historic site houses two museums, Fermanagh County Museum and The Inniskillings Museum. Fermanagh County Museum at Enniskillen Castle has reopened after undergoing a major redevelopment.