Trees in Wychwood Forest near Chipping Norton, Oxfordshire, England

Polar bear at the edge of Hudson Bay, Manitoba, Canada

Sea angel

Stormy sky over Lake Geneva in Lausanne, Switzerland

Bridge of Sighs in Venice, Italy

Brocken spectre in Central Balkan National Park, Bulgaria

Orcus sculpture in the Gardens of Bomarzo in Bomarzo, Italy

Oil lamps arranged on a rangoli to celebrate Diwali in Guwahati, India

Mute swan in Valkenhorst Nature Reserve, near Valkenswaard, the Netherlands

Karst mountains in Guilin and Lijiang River National Park, China

Cypress trees in autumn, Georgia

Hoffmann's two-toed sloth mother and young, Puerto Viejo de Talamanca, Costa Rica

Thuringian Forest in autumn with Wartburg Castle, Germany

Guggenheim Museum Bilbao, Spain

Long-eared owl in the Bohemian-Moravian Highlands of the Czech Republic

Prince Christian Sound in southern Greenland

Naqsh-e Rostam archaeological site near Persepolis, Iran

Waterfall on the Río Arazas in Ordesa y Monte Perdido National Park, Pyrenees, Spain

Bull and female moose in Denali National Park, Alaska

Ammonite Pavement at Monmouth Beach, Jurassic Coast World Heritage Site, Dorset, England