Standing stones of Neolithic henge, Stonehenge, UNESCO World Heritage Site, Wiltshire, England, United Kingdom, Europe

View from north towards sarsen circle bluestones and one trilithon, Stonehenge, UNESCO World Heritage Site, Wiltshire, England, United Kingdom, Europe

View looking up towards trilithon lintel, Stonehenge, UNESCO World Heritage Site, Wiltshire, England, United Kingdom, Europe

Trilithon doorway, main entrance to megalithic temple dating from around 3000 BC, Hajar Qim (Hagar Qim), UNESCO World Heritage Site, Malta, Europe