Protest posters are attached to the walls surrounding the “Occupy London” camp outside St. Paul's Cathedral on November 01, 2011 in London, England. The Dean of St. Pauls Cathedral The Very Reverend Graeme Knowles resigned yesterday over the church's handling of the anti-capitalist “Occupy London” demonstration, which continues to occupy the grounds outside the cathedral. (Photo by Dan Kitwood/Getty Images)

Artist Elizabeth Thompson poses next to her Blu-tack Spider sculpture at London Zoo on October 25, 2007 in London, England. The sculpture, known as “Blu-ey”, is a model of a common house spider and is completely made out of blu-tack. It is on show at BUGS! at ZSL London Zoo. The sculpture is made from around four thousand packets of Blu-tack and weighs over 200kg. (Photo by Chris Jackson/Getty Images)

Keira Knightley attends the premiere for “A Dangerous Method” at The 55th BFI London Film Festival at The Odeon West End on October 24, 2011 in London, United Kingdom. (Photo by Dave Hogan/Getty Images)

Characters from Star Wars pose for a photocall to promote the release of Star Wars: Episode 1 – The Phantom Menace 3D at The London Eye on February 8, 2012 in London, England. (Photo by Dave J. Hogan/Getty Images)

Workers lay railway track in a tunnel of the Crossrail project in Stepney, east London, Britain, November 16, 2016. Crossrail, which is Europe's largest construction project, is a railway link which will connect outlying areas to the east and west of London with tunnels under the centre of the capital. (Photo by Stefan Wermuth/Reuters)

The Photo London Master of Photography award is given annually to a leading contemporary photographer. A special exhibition shows new and rarely seen images from Burtynsky’s portfolio. Here: Morenci Mine #2, Clifton, Arizona, USA, 2012. (Photo by Edward Burtynsky/Metivier Gallery, Toronto/Flowers Gallery, London)

Peasants in the re-taken Somme District work in the fields, circa 1916- 1917, in this Library of Congress handout photo. For women 100 years ago, opportunities to work beyond the home and take part in political life were very limited. As the 20th century progressed, hard-won progress included gradually improved voting rights, while the upheaval of war pushed doors ajar as women worked as part of the war effort. U.S. Library of Congress archive photos show women's workplaces ranging from a flour mill in England to a coal mine in Belgium or Lincoln Motor Co.'s welding department in Detroit. International Women's Day is celebrated on March 8. (Photo by Reuters/Bain Collection/Library of Congress)

“Rudolf Khametovich Nureyev was a Russian Tatar dancer from the former Soviet Union, primarily known for his work in ballet. Nureyev's artistic skills explored expressive areas of the dance, providing a new role to the male ballet dancer who once served only as support to the women. He defected to the West, despite KGB efforts to stop him. According to KGB archives studied by Peter Watson, Nikita Khrushchev personally signed an order to have Nureyev killed”.

Photo: British ballerina Margot Fonteyn (Margaret Hookham) (1919 – 1991) and her professional partner during his tenure with the Royal Ballet Rudolf Nureyev. (Photo by Potter/Express/Getty Images). 12th December 1965. (Photo by Central Press/Getty Images)