Grianan of Aileach ring fort, Donegal, Ireland (© aluxum/Getty Images)

Giant panda eating bamboo, China (© Entwicklungsknecht/Getty Images)

Pacific Rim National Park Reserve, Vancouver Island, Canada (© EmilyNorton/Getty Images)

Lanyon Quoit, a Neolithic dolmen in Cornwall, England (© Helen Hotson/Alamy)

Vaults of the Church of Notre Dame de Bon-Port, Les Sables-d’Olonne, France (© Helmut Meyer zur Capellen/Alamy)

Juvenile sunbittern displaying at nest, Ecuador (© Andy Rouse/naturepl.com)

Peach trees in bloom, Cieza, Murcia, Spain (© Juan Maria Coy Vergara/Getty Images)

Geothermal blue pool Bláhver at Hveravellir, Iceland (© Juan Maria Coy Vergara/Getty Images)

Gray seal sleeping on the beach, Orkney Islands, Scotland (© Andrew Mason/Minden Pictures)

Astronomical clock at Town Hall of the City of Ulm, Germany (© Tomekbudujedomek/Getty Images)