These snaps capture true winter wonderlands – as Mother Nature's icy grip takes hold of America's National Parks. From snow-capped mountains in Yosemite to an icy still Glacier Bay, the incredible images show their beauty is year round. In other breath-taking shots crisp frost lines the paths through Great Smokey Mountains and Crater Lake has had more than a dusting of snow. Here: Apostle Island National Lakeshore Park in Wisconsin. (Photo by U.S. Department of the Interior/Cater News)

Pupils look at an orphaned baby elephant at the David Sheldrick Elephant Orphanage within the Nairobi National Park, near Kenya's capital Nairobi October 15, 2014. The orphanage under the David Sheldrick Wildlife Trust is operated by Daphne Sheldrick, wife of late famous naturalist David William Sheldrick. The orphaned elephants raised by the trust will be returned to join the undomesticated elephant population in Tsavo National Park, where David was the founder warden from 1948 to 1976, when they mature, usually between eight to 10 years old. (Photo by Goran Tomasevic/Reuters)

David Rawcliffe, house and monument steward at the National Trust's Chedworth Roman Villa cleans a Roman mosiac in the new environmentally-controlled conservation shelter on March 19, 2012 near Cirencester, England. Opened this month, the multi-million pound building allows visitors to walk on suspended walkways just above the 1600-year-old Roman floors and to see recently excavated mosaics not seen for 150 years, with more to be uncovered over the coming year. (Photo by Matt Cardy/Getty Images)

A lithographic sketch, purportedly by Beatles star John Lennon, shows his wife Yoko Ono in a sexual context within a document released by The National Archives March 23, 2004 in London. The document, which has been classified since 1970, contains sketches and letters which were seized by police to form part of the evidence for the indecency trial against the London Art Gallery which had been displaying the material. (Photo by Ian Waldie/Getty Images)

A female forest guard carries a tranquillizer gun in the Gir National Park and Wildlife Sanctuary in Sasan, in Gujarat December 2, 2014. The sanctuary, which is home to Asiatic lions in India, has an area of 1,412 sq km in which female guards were employed for the first time in India in 2007. The guards fetch a monthly salary of around $148 for working almost 12 hours a day, six days a week, said one of the female guards. (Photo by Anindito Mukherjee/Reuters)

Lady officers of the Philippine National Police force show the taped muzzle of their guns at a police camp in Taguig City, south of Manila, Philippines, 22 December 2014. Law enforcement units all over the country held a ceremonial taping of firearms as a counter measure against cases of indiscriminate firing and illegal discharge of service weapons during the upcoming Christmas and New Year celebrations. (Photo by Francis R. Malasig/EPA)

Cadets from the National Cadet Corps (NCC) celebrate after being awarded the first position in the best marching trophy competition during the Republic Day celebrations in the northern Indian city of Chandigarh January 26, 2015. (Photo by Ajay Verma/Reuters)

A masquerader from the Paramin Blue Devils parades before judges during the traditional mas competition held by the National Carnival Commission at Victoria Square, in the capital Port-of-Spain, February 12, 2015. (Photo by Andrea De Silva/Reuters)