Northern Ireland, Country Antrim, Giant's Causeway. The sun sets behind the hexagonal basalt rock formations of Giant's Causeway Coast World Heritage site.

Northern Ireland, Country Antrim, Giant's Causeway. The sun sets behind the hexagonal basalt rock formations of the Wishing Chair, part of the Giant's Causeway Coast World Heritage site.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Stonehenge, one of the most famous prehsitoric stone cirlcless in the world, Stonehenge is the remains of a ring of standing stones set within earthworks.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Stonehenge, one of the most famous prehsitoric stone circles and group of standing stones in the world.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones within the Southern Inner Circle, situated within the South East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). The Cove, a formation of prehistoric standing stones within the Northern Inner Circle, situated within the North East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones situated within the South West Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones situated within the South West Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones situated within the South West Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones within the Southern Inner Circle, situated within the South East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Avebury Henge looking towards the prehistoric standing stones of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones within the Southern Inner Circle, situated within the South East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones situated along the Avenue leading to Avebury Stone Circle from West Kennet Long Barrow.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Silbury Hill a prehistoric artificial chalk mound located near Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones within the Southern Inner Circle, situated within the South East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones within the Southern Inner Circle, situated within the South East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Avebury Henge looking towards the prehistoric standing stones within the Southern Inner Circle, situated within the South East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Avebury Henge, with a standing stone within the Northern Inner Circle, situated within the North East Sector of the Avebury Prehistoric Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones within the Northern Inner Circle, situated within the North East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). The Cove, a formation of prehistoric standing stones within the Northern Inner Circle, situated within the North East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). Prehistoric standing stones within the Northern Inner Circle, situated within the North East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). The Cove, a formation of prehistoric standing stones within the Northern Inner Circle, situated within the North East Sector of the Avebury Stone Circle.

England, Wiltshire, Stonehenge & Avebury World Heritage Site (WHS). The Cove, a formation of prehistoric standing stones within the Northern Inner Circle, situated within the North East Sector of the Avebury Stone Circle.

England, Northumberland, Sycamore Gap, Northumberland National Park. Sycamore Gap, a famous landmark along Hadrians Wall in the Hadrians Wall World Heritage Site.

England, Northumberland, Hadrians Wall. The world heritage site of Hadrians Wall near the town of Haltwhistle

Scotland, Orkney Islands, Standing Stones of Stenness. The Standing Stones of Stenness, a Neolithic stone circle monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Skara Brae Prehistoric Village. Skara Brae, a stone-built Neolithic settlement, located on the Bay of Skaill on the west coast of Mainland Orkney and forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Skara Brae Prehistoric Village. Skara Brae, a stone-built Neolithic settlement, located on the Bay of Skaill on the west coast of Mainland Orkney and forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Skara Brae Prehistoric Village. Skara Brae, a stone-built Neolithic settlement, located on the Bay of Skaill on the west coast of Mainland Orkney and forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Skara Brae Prehistoric Village. Skara Brae, a stone-built Neolithic settlement, located on the Bay of Skaill on the west coast of Mainland Orkney and forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Skara Brae Prehistoric Village. Skara Brae, a stone-built Neolithic settlement, located on the Bay of Skaill on the west coast of Mainland Orkney and forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Skara Brae Prehistoric Village. Skara Brae, a stone-built Neolithic settlement, located on the Bay of Skaill on the west coast of Mainland Orkney and forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Skara Brae Prehistoric Village. Skara Brae, a stone-built Neolithic settlement, located on the Bay of Skaill on the west coast of Mainland Orkney and forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, The Ring of Brodgar. The Ring of Brodgar, a Neolithic stone circle and henge monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Standing Stones of Stenness. The Standing Stones of Stenness, a Neolithic stone circle monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Standing Stones of Stenness. The Standing Stones of Stenness, a Neolithic stone circle monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Standing Stones of Stenness. The Standing Stones of Stenness, a Neolithic stone circle monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Standing Stones of Stenness. The Standing Stones of Stenness, a Neolithic stone circle monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Standing Stones of Stenness. The Standing Stones of Stenness, a Neolithic stone circle monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site

Scotland, Orkney Islands, Standing Stones of Stenness. The Standing Stones of Stenness, a Neolithic stone circle monument on the mainland of Orkney, Scotland, forming part of the Heart of Neolithic Orkney World Heritage Site