The Copper River Delta in Wrangell-St Elias National Park and Preserve, Alaska, USA (© Frans Lanting/plainpicture)

The Glenfinnan Viaduct in Scotland, made famous by the Hogwarts Express in Harry Potter (© Jon Arnold/DanitaDelimont.com)

The installation 'Waldplastik' during Blue Night in Nuremberg, Germany (© Daniel Karmann/Shutterstock)

The Skellig Islands, Skellig Michael and Little Skellig, in Ireland (© Design Pics/DanitaDelimont.com)

San Miguel de Allende, Mexico (© ferrantraite/Getty Images)

Hummingbird near blooming aloe vera in Laguna Beach, California, USA (© Aurora Photos/Offset)

St Mary Falls in Glacier National Park, Montana, USA (© Pung/Shutterstock)

A fox in the grass (© Frederic Desmette/Minden Pictures)

Zebras in Serengeti National Park, Tanzania (© pchoui/Getty Images)

A carpet of bluebells in beech woodland, Hertfordshire (© Dan Tucker/Alamy)

Historic windmills of Zaanse Schans near Amsterdam, Netherlands (© Matt Cooper/Gallery Stock)

An outdoor curling tournament in Naseby, New Zealand (© David Wall/Danita Delimont)

Midnight sun at North Cape, Norway (© Ron Bennett/Shutterstock)

Cannes, France, where the annual film festival begins today (© Manjik Photography/Alamy)

Pine Log State Forest, Florida, USA (© plainpicture/Cavan Images)

Abu Simbel temples on the west shore of Lake Nasser, Egypt (© George Steinmetz/Getty Images)

The City of Arts and Sciences in Valencia, Spain (© MAIKA 777/Getty Images)

Ghyakar village, Upper Mustang, Nepal (© Frank Bienewald/Alamy)

A honey bee (Apis mellifera) covered in pollen in pumpkin, Germany (© Konrad Wothe/Minden Pictures)

A garden exhibit at the 2018 RHS Chelsea Flower Show (© Natalia Vestigio Services/Shutterstock)

'El Problema del Caballo' by Claudia Fontes in Venice, Italy (© Marco Secchi/Getty Images)

Green sea turtle with sardines near Playa Grandi beach, Curaçao (© yfhishinuma/Getty Images Plus)

Sandcastle on Malvarrosa Beach in Valencia, Spain (© Tony French/Alamy)

Male Cape May warbler in spring (© JZHunt/Getty Images Plus)

Mont Saint-Michel for its annual marathon (© Leroy Francis/Getty Images)

Mima mounds at Oregon’s Zumwalt Prairie, USA (© Michael Durham/Minden Pictures)

Sydney Opera House light beam projections during Vivid 2017 (© Taras Vyshnya/Alamy Stock Photo)

Stravinsky Fountain in Paris, France (© Alessandro Saffo/eStock Photo)

For the Cricket World Cup, a cricket-themed sculpture at Yorkshire Lavender (© Jonathan Hodson/Alamy)

Pitting Gales Point, Pembrokeshire Coast National Park, west Wales (© Sebastian Wasek/Getty Images)

The High Trestle Trail Bridge in Iowa, USA (© Kelly van Dellen/Getty Images Plus)