Spine-cheeked anemonefish surrounded by bubble-tip anemone, Milne Bay, Papua New Guinea (© Fred Bavendam/Nature Picture Library)

Rainbow River in Rainbow Springs State Park, Florida, United States (© Michel Roggo/Minden Pictures)

Orosei, Sardinia, Italy (© EyeEm Mobile GmbH/Getty Images)

Mesquite Flat Sand Dunes in Death Valley National Park, California, United States (© Bryan Jolley/TANDEM Stills + Motion)

Northern gannets diving for fish, Shetland Islands, Scotland (© Richard Shucksmith/Minden Pictures)

Seceda, a peak in the Dolomites, South Tyrol, Italy (© Kalyakan/Adobe Stock)

Constitución railway station, Buenos Aires, Argentina (© Grafissimo/Getty Images)

Buddha Statue, Hussain Sagar, Hyderabad, Telangana (© Amith Nag Photography/Getty Images)

Tokyo at sunrise, Japan (© pongnathee kluaythong/Getty Images)

Thomson's gazelle mother and fawn, Maasai Mara, Kenya (© Gallo Images/DanitaDelimont.com)

Basalt columns in Kálfshamarsvík cove, Skagi peninsula, Iceland (© Arterra Picture Library/Alamy Stock Photo)

Young blue shark swimming off the coast of Galicia, Spain (© Damocean/Getty Images)

Muchalinda Sarovar, Bodh Gaya, Bihar (© Alexander Reshnya/Getty Images)

Temple of Philae (aka Temple of Isis), Aswan, Egypt (© Ratnakorn Piyasirisorost/Getty Images)

Lavender fields in Plateau de Valensole, France (© zpagistock/Getty Images)