Brocken spectre in Central Balkan National Park, Bulgaria (© Maya Karkalicheva/Getty Images)

Orcus sculpture in the Gardens of Bomarzo in Bomarzo, Italy (© Scott Wilson/Alamy)

Oil lamps arranged on a rangoli to celebrate Diwali in Guwahati, India (© Biju Boro/Getty Images)

Mute swan in Valkenhorst Nature Reserve, near Valkenswaard, the Netherlands (© David Pattyn/Minden Pictures)

Karst mountains in Guilin and Lijiang River National Park, China (© Sean Pavone/Alamy)

Cypress trees in autumn, Georgia (© Chris Moore/Tandem Stills + Motion)

Hoffmann’s two-toed sloth mother and young, Puerto Viejo de Talamanca, Costa Rica (© Suzi Eszterhas/Minden Pictures)

Thuringian Forest in autumn with Wartburg Castle, Germany (© ezypix/Getty Images)

Guggenheim Museum Bilbao, Spain (© Jeremy Horner/Getty Images)

Long-eared owl in the Bohemian-Moravian Highlands of the Czech Republic (© Ondrej Prosicky/Alamy)