Saguaro cactuses, Saguaro National Park, Arizona, USA (© Christian Foto Az/Shutterstock)

Hyacinth macaws, Pantanal, Brazil (© David Pattyn/Minden Pictures)

Ivishak River, North Slope Borough, Alaska, USA (© Don Paulson/Danita Delimont)

Roman amphitheatre of Itálica, Spain (© Amazing Aerial Agency/Offset by Shutterstock)

Andromeda Galaxy (© NASA/JPL-Caltech)

Boreal forest, Quebec, Canada (© Onfokus/Getty Images)

Dallas Divide, Colorado, USA (© Ronda Kimbrow/Shutterstock)

Huay Mae Khamin waterfall, Khuean Srinagarindra National Park, Thailand (© Casper1774Studio/Getty Images)

Common octopus, Gulf of Lion, Mediterranean Sea (© BIOSPHOTO/Alamy)

Sandhill cranes and mallard ducks, Bosque del Apache National Wildlife Refuge, New Mexico, USA (© Cathy & Gordon Illg/Jaynes Gallery/DanitaDelimont.com)

Blackfoot paua (rainbow abalone) shell, New Zealand (© Lynda Harper/Minden Pictures)

Wapizagonke Lake, La Mauricie National Park, Quebec, Canada (© Instants/Getty Images)

Saint-Malo, Brittany, France (© Mathieu Rivrin/Moment/Getty Images)

Ichthyosaur fossil, Dinosaurland Fossil Museum, Lyme Regis, Dorset, England (© Christopher Jones/Alamy)

Farra di Soligo, Veneto, Italy (© Olimpio Fantuz/Sime/eStock Photo)

Temple of Hatshepsut near Luxor, Egypt (© Ratnakorn Piyasirisorost/Moment/Getty Images)

Redwood Memorial Grove, Whakarewarewa Forest, North Island, New Zealand (© Michael Breitung/Huber/eStock Photo)

Capel Curig, Snowdonia National Park, Wales, United Kingdom (© Sebastian Wasek/Sime/eStock Photo)

Fanal forest, Madeira island, Portugal (© Val Thoermer/Alamy)

Brown-throated sloth, Manuel Antonio National Park, Costa Rica (© Lukas Kovarik/Shutterstock)

Atchafalaya Basin, Louisiana, USA (© Chris Moore/Exploring Light Photography/Tandem Stills + Motion)

Comet NEOWISE, Jasper National Park, Alberta, Canada (© Stocktrek Images, Inc./Alamy)

Eurasian scops owl, Bohemian Switzerland National Park, Czech Republic (© Milan Zygmunt/Alamy)

Bavljenac island, Croatia (© Julien Duval/Amazing Aerial Agency)

Dyavolski most (Devil's Bridge), Arda river, Bulgaria (© Petar Mladenov/Alamy)

Red fox, Black Forest, Germany (© Klaus Echle/Minden Pictures)

The Battery, Signal Hill, St. John's, Newfoundland and Labrador, Canada (© Terrance Klassen/Alamy)

Ravens, Alaska, USA (© Brian Browitt Photo/Adobe Stock)

Necropolis, Dargavs, Republic of North Ossetia–Alania, Russia (© Yakov Oskanov/Shutterstock)

Pine forest, Central Highlands of Vietnam (© Thanh Thuy/Moment/Getty Images)

Pumpkins, Massachusetts, USA (© Frank Debonis/EyeEm/Alamy)