As one of the most iconic structures in the world, the Eiffel Tower has been the inspiration for the creation of at least 12 replicas of a quarter scale or larger, and there are more than 40 duplicates and similar towers of various scales around the world. An early example is the Blackpool Tower in England. Mayor Sir John Bickerstaffe was so impressed on seeing the Eiffel Tower at the 1889 Exhibition that he invested in a similar tower for his own city.Two full size replicas exist: Tokyo Tower in Japan and the Long Ta communications tower in northern China.