Mosque at Kairouan, Tunisia, North Africa, Africa

Tourist boats, Luxor, Egypt, North Africa, Africa

Kursunlu Waterfall, Kursunlu National Park, Antalya Region, Anatolia, Turkey, Asia Minor, Eurasia

Bridge of Sighs, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Waterfront, Doge's Palace, The Zecca, San Marco, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Grand Canal and Santa Maria in distance, Venice, UNESCO World Heritage Site, Veneto, Italy, Europe

Street in the Medina, Kairouan, Tunisia, North Africa, Africa

The archaeological site of Salamis, Salamis, North Cyprus, Europe

Amphitheatre, El Jem (El Djem), UNESCO World Heritage Site, Tunisia, North Africa, Africa

Amphitheatre, archaeological site of Salamis, Salamis, North Cyprus, Europe

Church made of wood, Pirogov Village, near Kiev, Ukraine, Europe

Tourist boats, Green Canyon, Oymapinar Lake, Manavgat, Antalya region, Anatolia, Turkey, Asia Minor, Eurasia

Theatre, built 200BC, archaeological site of Hierapolis, Pamukkale, UNESCO World Heritage Site, Anatolia, Turkey, Asia Minor, Eurasia

Old Town, above the old harbour, Antalya, Anatolia, Turkey, Asia Minor, Eurasia

Intricate wood carving above the fire place in Stokesay Castle, a fortified manor house built in the late 13th century, in Stokesay, near Craven Arms, Shropshire, England, United Kingdom, Europe

The gate house at Stokesay Castle, a fortified manor house built in the late 13th century in Stokesay, near Craven Arms, Shropshire, England, United Kingdom, Europe

Limestone Terrace, Pamukkale, UNESCO World Heritage Site, Anatolia, Turkey, Asia Minor, Eurasia

Ancient roof timbers in Stokesay Castle which is a fortified manor house built in the late 13th century, Stokesay, near Craven Arms, Shropshire, England, United Kingdom, Europe

The gate house at Stokesay Castle, a fortified manor house built in the late 13th century in Stokesay, near Craven Arms, Shropshire, England, United Kingdom, Europe

The gate house at Stokesay Castle, a fortified manor house built in the late 13th century in Stokesay, near Craven Arms, Shropshire, England, United Kingdom, Europe

Limestone Terrace, Pamukkale, UNESCO World Heritage Site, Anatolia, Turkey, Asia Minor, Eurasia

Limestone Terrace, Pamukkale, UNESCO World Heritage Site, Anatolia, Turkey, Asia Minor, Eurasia

The gate house at Stokesay Castle, a fortified manor house built in the late 13th century in Stokesay, near Craven Arms, Shropshire, England, United Kingdom, Europe

Beach at El Golfo Fishing Village, Lanzarote, Canary Islands, Spain, Atlantic, Europe

Terraced Vineyard, Lanzarote, Canary Islands, Spain, Atlantic, Europe

Upper and lower jaw bones (+ one rib) of a blue whale (Balaenoptera musculus) at an old whaling station. BBC Broadcaster John Craven for scale. Snaefellsness Peninsular, Iceland.