As part of our series exploring Britain's architectural wonders, the Observer's architecture critic Rowan Moore introduces a spectacular interactive 360-degree panoramic photograph of the last of Sir John Vanbrugh's housesâ— Explore the panoramic image of Seaton DelavalSeaton Delaval Hall, built between 1719 and 1732, is the last of Sir John Vanbrugh's houses and the most satisfying. Recently acquired by the Nat…
