Castle Pics on Instagram: "Hermitage Castle, hidden deep within the remote Liddesdale Valley in the Scottish Borders, is one of Scotland’s most atmospheric and mysterious fortresses. Built in the 14th century, it served as a formidable stronghold guarding the turbulent Anglo-Scottish border, earning a fearsome reputation as the “guardhouse of the bloodiest valley in Britain.” Its massive stone walls and stark, austere design reflect its role as both a defensive fortress and a place of power duri