A general view of Edinburgh Castle on February 7, 2012 in Edinburgh, Scotland. The castle dominates the city skyline was built on top of an extinct volcano, and has had a human settlement on the castle site since 900BC. (Photo by Jeff J. Mitchell/Getty Images)

Tourists have their photographs taken at the Acropolis on Calton Hill on February 7, 2012 in Edinburgh, Scotland. The construction of the acropolis was started in 1822 as Scotland's memorial to the people who died in the Napoleonic Wars. (Photo by Jeff J. Mitchell/Getty Images)