England, Northumberland, North Pennines. The remains of an old smelting flue on Dryburn Moor near Allendale.

England, Northumberland, North Pennines. The remains of an old smelting flue on Dryburn Moor near Allendale.

England, Northumberland, North Pennines. The remains of an old smelting flue on Dryburn Moor near Allendale.

England, Northumberland, Warkworth Castle. Warkworth Castle (English Heritage), a magnificent 12th century stone motte and bailey fortress, located near the Northumberland Heritage Coast.

England, Northumberland, Warkworth Castle. Warkworth Castle (English Heritage), a magnificent 12th century stone motte and bailey fortress, located near the Northumberland Heritage Coast.

England, Northumberland, Warkworth Castle. Warkworth Castle (English Heritage), a magnificent 12th century stone motte and bailey fortress, located near the Northumberland Heritage Coast.

England, Northumberland, Warkworth Castle. Warkworth Castle (English Heritage), a magnificent 12th century stone motte and bailey fortress, located near the Northumberland Heritage Coast.

Scotland, Edinburgh, Edinburgh City. The Flodden Wall, constructed after the death of King James IV during the Battle of Flodden, was constructed as a means to defend the city from invaders. Remains of the wall are visible here and now form part of the Vennel heading towards the Grassmarket.

England, Tyne and Wear, Wallsend. Excavated remains of the original foundations of the Segedunum fort in Wallsend.

England, Tyne and Wear, Wallsend. Excavated remains of the original foundations of the Segedunum fort in Wallsend.

Scotland, Edinburgh, Edinburgh Castle. Edinburgh Castle is built upon the remains of an extinct volcano, originally known as Lookout Hill but now known as Castle Rock, which has been used as a stronghold for over 3000 years.

Sunrise over King Edward's Bay viewed from near Sharpness Point. The remains of Tynemouth Priory can be seen to the right.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

England, Cumbria, Swinside Stone Circle. The name of the Sunkenkirk stone circle, also known as Swinside, is derived from the ancient belief that the circle of stones are the remains of an ancient church (kirk) sunk into the ground by a strike from the Devil.

Scotland, Scottish Borders, Smailholm Tower. The well preserved remains of Smailholm Tower. The location of the rectangular tower on a hilly outcrop ensures that it dominates the surrounding landscape for miles.

Cambodia, Angkor Thom, Bayon. Massive stone faces watch your every move at Bayon, a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Massive stone faces watch your every move at Bayon, a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Massive stone faces watch your every move at Bayon, a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Massive stone faces watch your every move at Bayon, a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Massive stone faces watch your every move at Bayon, a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Massive stone faces watch your every move at Bayon, a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Massive stone faces watch your every move at Bayon, a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Bayon is a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Bayon is a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Bayon is a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Bayon is a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Bayon is a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Massive stone faces watch your every move at Bayon, a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor Thom, Bayon. Bayon is a well-known and richly decorated Khmer temple at Angkor in Cambodia.

Cambodia, Angkor, Angkor Wat. Close up details of Angkor relief art on the walls of the dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. The dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. Statue alongside the dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. Close up details of Angkor relief art on the walls of the dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. Close up details of Angkor relief art on the walls of the dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. Close up details of Angkor relief art on the walls of the dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. Buddhist statues colourfully decerated within the dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. Buddhist statues colourfully decerated within the dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. The dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. The dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. The dramatic remains of Angkor Wat.

Cambodia, Angkor, Angkor Wat. The dramatic remains of Angkor Wat.