Gleaston Castle - Credit: Wikimedia Commons
Gleaston Castle is a medieval building in a valley about north-east of the village of Gleaston. The village lies between the towns of Ulverston and Barrow-in-Furness in the Furness peninsula, Cumbria, England. Gleaston Castle has a quadrilateral plan, with a tower at each corner. The largest of these, the north-west tower, probably housed a hall. Read more on Wikipedia
Source: en.wikipedia.org