Crescent-tail bigeye fish in the Great Barrier Reef, Australia (© Fred Bavendam/Minden Pictures)

Heri es-Swani in Meknes, Morocco (© Calin Stan/Shutterstock)

Abraham Lake, Alberta, Canada (© Basic Elements Photography/Getty Images)

The US Capitol dome with flags flying at half-staff in honor of former President Jimmy Carter, Washington, DC (© J. David Ake/Getty Images)

Snow on the Great Wall of China (© View Stock/Alamy)

Moeraki Boulders at sunset, South Island, New Zealand (© Douglas Pearson/eStock Photo)

Flooded crypt, Basilica of San Francesco, Ravenna, Italy (© Andrea Pucci/Getty Images)

Plum-headed parakeet at Shimoga, Karnataka, India (© Hira Punjabi/Alamy)

Bản Giốc–Detian Falls on the Quây Sơn River, Vietnam (© Shane P. White/Minden Pictures)

The Radcliffe Camera and All Souls College, University of Oxford, England (© atiger/Shutterstock)