Guy Edwardes / Aurora Borealis over Sycamore Gap, Hadrian's Wall, Northumberland, England. February 2014

Guy Edwardes / Landscape around Hadrian's Wall in winter, Northumberland, England, UK, December 2012

Guy Edwardes / Hadrian's Wall, Northumberland, England, UK. December 2012

Guy Edwardes / Landscape of Hadrian's Wall, Northumberland, England, UK, December 2013

Guy Edwardes / Aurora Borealis over Sycamore Gap, Hadrian's Wall, Northumberland, England. February 2014

Emanuele Biggi / Freshwater crab (Potamon fluviatile) living in old Roman ruins, Traiano's Market, Rome, Italy

Graham Eaton / Hadrian's Wall between Steel Rigg and Housesteads on The Whin Sill, a layer of hard intrusive, volcanic Dolerite naturally forming high ground, Northumberland, England, UK, March 2017.

Graham Eaton / Hadrian's Wall between Steel Rigg and Housesteads on The Whin Sill, a layer of hard intrusive, volcanic Dolerite naturally forming high ground, Northumberland, England, UK, March 2017.

Graham Eaton / Hadrian's Wall at Sycamore Gap between Steel Rigg and Housesteads on The Whin Sill, a layer of hard intrusive, volcanic Dolerite naturally forming high ground, Northumberland, England, UK, March 2017.

Graham Eaton / Hadrian's Wall at Sycamore Gap, between Steel Rigg and Housesteads, Northumberland, England, UK, March 2017.

Graham Eaton / Sycamore (Acer pseudoplatanus) in Sycamore Gap, Hadrian's Wall. The wall is constructed on The Whin Sill, a layer of hard intrusive, volcanic Dolerite. Between Steel Rigg and Houseteads, Northumberlan...

Graham Eaton / Elevated view along Hadrian's Wall. The wall is constructed on The Whin Sill, a layer of hard intrusive, volcanic Dolerite. Between Steel Rigg and Houseteads, Northumberland, England, UK, March 2017.

Nick Turner / Sign for Chedworth Roman Villa at Yanworth, Gloucestershire, UK. October.

Nick Turner / Sign for Chedworth Roman Villa at Yanworth, Gloucestershire, UK. October 2015.

Nick Turner / Archaeologist with quern stone at an excavation of a 2nd century Roman villa at Hanging Hill, Gloucestershire, UK. September 2015.

Constantinos Petrinos / Tower of the Winds or the Horologion of Andronikos Kyrrhestes, with Cypress Tree (Cupressus sempervirens), and the Fethiye Mosque among the ruins of the Roman Agora. Athens, Greece, Mediterranean, Ja...

Constantinos Petrinos / Roman Agora in Athens (foreground) and in the background (right) the Tower of the Winds or the Horologion of Andronikos Kyrrhestes, Athens, Greece, Mediterranean, January 2011.

Constantinos Petrinos / Remains of the Roman Agora, Athens, Greece, Mediterranean, January 2011.

Constantinos Petrinos / Tourists visiting the remains of the Roman Agora, Athens, Greece, Mediterranean, January 2011.

Pascal Tordeux / Ancient Roman ruins at Perge (Perga), Turkey, March 2006.

Pascal Tordeux / Ancient Roman ruins at Perge (Perga), Turkey, March 2006.

Will Watson / Roman octagonal cistern filled with spring water, The Weir Garden National Trust, Kenchester, Herefordshire, England. March 2014.

Jean E. Roche / A Roman barge, dating from the time of Nero (50-55 AD) one of the oldest complete boats in the world, Museum of Ancient Arles, France, December 2013.

David Tipling / Cockerel mosaic from a 2nd century AD Roman pavement from Acholla, Tunisia. Now in Bardo Museum Tunisia. Xenia (hospitality) motif, the cockerel would have been a symbol of food.

David Tipling / Ancient greek coin depicting Little Owl (Athene noctua) the symbol of Athena.

David Tipling / Mosaic of Pheasant (Phasanidae) and Cockerel one of many mosaics depicting birds in the Villa of the Aviary - peristilium (courtyard) at Carthage Tunisia. Roman dating to around 3rd century AD.

David Tipling / Roman mosaic of a Partridge probably a Barbary partridge (Alectoris barbara) one of many mosaics depicting birds in the Villa of the Aviary - peristilium (courtyard) at Carthage Tunisia. From around 3...

David Tipling / Mosaic of trapped thrushes, from late 2nd century Roman from pavement of a triclinium (dining room) at Thysdrus, El-Jem, Tunisia. Mosaic in Bardo Museum, photographed with permit.

John Waters / Ancient woodland growing on abandoned open cast mine, Scowles, Forest of Dean, Coleford, Gloucestershire, England, UK, November 2022. Mine dates back to Roman period.

Franco Banfi / Ancient Roman statue of Antonia minor, member of Julio-Claudian dynasty, daughter of Marcus Anthony and sister of emperor Augustus, located in submerged Nymphaeum of Emperor Claudius. Marine Protected...

Franco Banfi / Ancient Roman statue of Dionysus with ivy crown, located in submerged Nymphaeum of Emperor Claudius. Marine Protected Area of Baia, Naples, Italy. Tyrrhenian sea.

Franco Banfi / Ancient Roman tessellatum mosaic in black and white decorated with pattern of hexagons, perfectly preserved, in Villa a Protiro. Marine Protected Area of Baia, Naples, Italy. Tyrrhenian sea.

Franco Banfi / Fish swimming over pieces of marble and red brick covering floor in one of rooms located in submerged ancient Roman Nymphaeum of Emperor Claudius. Marine Protected Area of Baia, Naples, Italy. Tyrrhen...

Franco Banfi / Detail of splendid ancient Roman tessellatum mosaic in black and white decorated with pattern of hexagons, perfectly preserved, in Villa a Protiro. Marine Protected Area of Baia, Naples, Italy. Tyrrh...

Franco Banfi / Ancient Roman tessellatum mosaic in black and white decorated with pattern of hexagons, perfectly preserved, in Villa a Protiro. Marine Protected Area of Baia, Naples, Italy. Tyrrhenian sea.

Franco Banfi / Ancient Roman statue of Antonia minor, member of Julio-Claudian dynasty, daughter of Marcus Anthony and sister of emperor Augustus, located in submerged Nymphaeum of Emperor Claudius. Marine Protected...

Franco Banfi / Statue depicting companion of Ulysses, perhaps Baio, located in submerged Nymphaeum of Emperor Claudius. Marine Protected Area of Baia, Naples, Italy. Tyrrhenian sea. statue encrusted with sealife

Franco Banfi / Ancient Roman statue of the god of intoxication and happiness Dionysus, located in submerged Nymphaeum of Emperor Claudius. Marine Protected Area of Baia, Naples, Italy. Tyrrhenian sea.

Franco Banfi / Tesselatum mosaic floor at Terme Romane, ancient Baths of Baia, vast Roman thermal and residential archaeological complex of Baia, Naples, Italy. October.

Franco Banfi / Scuba diver exploring ancient Roman mosaic from the third century AD, with maritime theme, made with black and white tessellatum tiles depicting seabed with dolphins, sea urchins, moray eels and other...

Franco Banfi / Ancient Roman mosaic from the third century AD, with maritime theme, made with black and white tessellatum tiles depicting seabed with dolphins, sea urchins, moray eels and other fish, in thermal com...

Franco Banfi / Ancient Roman black and white mosaic floor depicting two male athletes wrestling. Marine Protected Area of Baia, Naples, Italy. Tyrrhenian sea.

Franco Banfi / Ancient Roman polychrome mosaic situated in thermal complex of Lacus Baianus. Marine Protected Area of Baia, Naples, Italy. Tyrrhenian sea.

Franco Banfi / Scuba diver near ancient Roman Statue of Antonia minor, member of Julio-Claudian dynasty, daughter of Marcus Anthony and sister of emperor Augustus, in submerged Nymphaeum of Emperor Claudius. Marine...

Franco Banfi / Ancient Roman statue of Antonia minor, member of Julio-Claudian dynasty, daughter of Marcus Anthony and sister of emperor Augustus, located in submerged Nymphaeum of Emperor Claudius. Marine Protect...

Franco Banfi / Ancient Roman statue of Ulysses with cup of wine, located in submerged Nymphaeum of Emperor Claudius. Marine Protected Area of Baia, Naples, Italy. Tyrrhenian sea.

Franco Banfi / Ancient Roman statue depicting companion of Ulysses, perhaps Baio, located in submerged Nymphaeum of Emperor Claudius. Marine Protected Area of Baia, Naples, Italy. Tyrrhenian sea. Encrusted with barn...

Paul Harcourt Davies / Stones of pre-Roman site of Clusiolum on Torre Maggiore (1121 m.) with views of the Sibillini behing, Terni, Umbria, Italy. September.