The UK’s National Archives, home to the Magna Carta and Britain's own "X files," presents this ponderous collection of maps, some more than seven centuries old. In dusting off old woodcuts, sea charts, military and treaty maps, the archivists answer questions like: Why were they made? Who used them? and How have times changed? The maps featured include a woodcut map of 16th-century London, a map that English settlers made of Roanoke Island and a map of the Great Exhibition in 1851 that was printed on a lady's glove.