EnviroMission[?] is planning to build one in Australia. If built, it will become the tallest structure in the world, with a height of one kilometer.
External link
... Charles (Ghent February 25, 1500-San Jerónimo de Yuste[?], Spain September 21, 1558) was Holy Roman Emperor (as Charles V) from 1519-1558; he was also King of ...