4. Tulip Staircase at the Queen's House (England)
The elegant Tulip Stairs in the Queen's House are the first geometric self-supporting spiral stairs in Britain. Although called the 'Tulip Stairs,' it is thought that the stylized flowers in the wrought-iron balustrade are actually fleurs-de-lis, as this was the emblem of the Bourbon family of which Queen Henrietta Maria (wife of Charles I) was a member. The TulipStairs are also the location of the Rev R. W. Hardy's famous 'ghost' photograph taken on 19 June 1966, which when developed revealed what appear to be two or three shrouded figures onthe staircase.