Women’s suffrage parade on Fifth Avenue, Manhattan, New York City, October 23, 1915 (© Bettmann/Getty Images)

Eurasian red squirrel (© Westend61/Getty Images)

Bamburgh Castle, Northumberland, England (© Blackbeck/Getty Images)

Polar bear cubs playing, Kaktovik, Alaska (© Piriya Photography/Getty Images)

Grand Canyon National Park, Arizona (© Jeremy Janus/Getty Images)

‘United We Stand’ sculpture by Charles McGee, Charles H. Wright Museum of African American History, Detroit, Michigan (© Jim West/Alamy)

Almond trees in full bloom, California (© Jeffrey Lewis/Tandem Stills + Motion)

Haghartsin Monastery, Dilijan National Park, Armenia (© Alexey Kharitonov/Shutterstock)

Bathing boxes at Brighton Beach, Melbourne, Victoria, Australia (© Prasit photo/Getty Images)

Firefall at Horsetail Fall, Yosemite National Park, California (© Gregory B Cuvelier/Shutterstock)