Participants arrive at the finish line during the annual Maldon Mud Race in Maldon, east England on May 7, 2017. Originating in 1973, the race involves competitors racing around a course through the River Blackwater in Essex at low tide. (Photo by Daniel Leal-Olivas/AFP Photo)

Prince Philippe and Princess Letizia of Spain meet with Israeli president Shimon Peres at the presidential residence on April 11, 2011 in Jerusalem, Israel. The Spanish Royal couple is on their first official visit to Israel together. The Prince's parents, the King and Queen of Spain last visited in 1993.

Spanish artist Maximo Riera has produced a miniature series of his animal chair collection. The models are created entirely using nylon and a type of 3D printing called SLS (selective laser sintering).The process enables the small objects to achieve the best possible quality, resistance and lightest weight. based on the large-scale designs that combined animals and furniture into one item, the unconventional and peculiar compositions are still apparent in these latest versions.

Spanish artist Romulo Celdran (b. 1973) brings exquisite technical skill, a fastidious eye, and a scientific attention to detail to both his mixed-media drawings on board and his larger-than-life sculptures of quotidian objects.

Penitentes, or nieves penitentes (Spanish for “penitent-shaped snows”), are a snow formation found at high altitudes. They take the form of tall thin blades of hardened snow or ice, closely spaced with the blades oriented towards the general direction of the sun.

One of ten little spotted kiwi is released on Motuihe Island, a conservation pest-free island close to Auckland, on March 21, 2009 in Auckland, New Zealand. Eventually up to 40 endangered kiwi birds will be relocated to the island. (Photo by Hannah Johnston/Getty Images)