Brown pelican, San Diego, California (© Arthur Morris/BIRDS AS ART/Getty Images)

High Peaks Trail in Pinnacles National Park, San Benito County, California (© yhelfman/Getty Images)

The Great Court of the British Museum, London, England (© Cavan Images/Offset/Shutterstock)

Village of Zahara de la Sierra overlooking Zahara-El Gastor Reservoir, Cádiz province, Spain (© SEN LI/Getty Images)

Cottage with Tŵr Mawr Lighthouse in the background, Ynys Llanddwyn, Wales (© Westend61 on Offset/Shutterstock)

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)