Ngorongoro Crater (Tanzania). At 610m deep and 260 sq km, this is the largest unflooded caldera in the world. A blue-green vision from above it's a haven for engangered wildlife and Maasai livestock. The crater was formed three million years ago when a giant volcano, which could have been as high as Kilimanjaro, exploded and collapsed. The caldera formed the concentric fractures in the crust cracked down to a magma reservoir deep underground. (Photo by John Bryant/Getty Images)

An young exhibitor chases his wayward pig during the Great Yorkshire Show on July 12, 2011 in Harrogate, England. The annual Great Yorkshire Show has attracted a record number of 12,700 livestock entries over the three day event. The show now in its 153rd year is Britain's leading agricultural gathering, where over 125,000 visitors come to celebrate the farming community and their way of life. (Photo by Christopher Furlong/Getty Images)

A stuntman performs while riding a car inside the “Wall of Death” attraction during a fair in Bhaktapur April 20, 2015. (Photo by Navesh Chitrakar/Reuters)

Josephine Wall is an English fantasy artist and sculptor. Born in Farnham, Surrey, England in 1947, as a child she was always drawn to color, light, fantasy, and visual storytelling. Wall was influenced by Arthur Rackam illustrative ability, the surrealism of artists Magritte and Dali, along with the Pre-Raphaelites romanticism. She went to Farnham grammar school until her family Poole, Dorset when she was 14. There she studied at Parkstone (Dorset) grammar school, she then went on to study at Bournemouth College. Her first job as an artist was in 1967 at Poole Pottery as a designer and painter.

A man walks next to a section of the wall separating Mexico and the United States, on the outskirts of Ciudad Juarez, Mexico, November 12, 2016. (Photo by Jose Luis Gonzalez/Reuters)

An East German civilian (L) shows an East German customs officer the contents of his Trabant (auto) at checkpoint Potsdamer Platz in East Berlin in this November 24, 1989 file picture, as East Germany enforcing stringent customs controls to avoid smuggling. (Photo by Reuters)

The Mexico – United States barrier – also known in the United States as the border fence, rotted fence or border wall – is actually several separation barriers designed to prevent illegal movement across the Mexico – United States border.