Stock photography, photos: UK: Hadrian's Wall aerial view Stock photos of Hadrian's Wall and Cawfields Milecastle with Vellum defensive ditch behind Northumberland UK aerial view Photograph: © Photolibrary Skyscan Click for a larger image and more information Keywords associated with this stock photo: ag00726, northumberland, historic, monument, tourist attraction, tourism, english heritage, summer, rural, countryside, landscape feature, skyline, hill, hills, mountain, mountains, green, square, england, english, skyscan, great britain, gb, uk, united kingdom, aerial, arial, from above, high, altitude, air to ground, birdseye, wall, stone, rocky, history, historic, border, boundary, elevated, view, roman, hadrian, emporer, milecastle, cliffs, rugged, desolate, deserted, vallum, ditch,