The Barbican, Alnwick Castle, Northumberland, England, United Kingdom, Europe

alnwick castle barbican northumberland england united kingdom europe historical architecture castle entrance medieval tourism travel heritage ancient stonework attractions sightseeing north pennines visiting hours scenic views public access landmarks fortress historic site royal history tourist destination cultural heritage outdoor activities walking tour day trip guided tour historical significance architecture lovers castle grounds visitor center family friendly open spaces blue sky cloudscape historical landmark stone towers outdoor exploration nature local attractions history buffs picturesque vibrant peaceful surroundings vibrant culture iconic site exploring history heritage sites