The Eiffel Tower was the inspiration for the Blackpool Tower in Blackpool, England. After visiting the Great Paris Exhibition in 1889, the town's mayor John Bickerstaffe commissioned the building of the tower, which has a very similar design and was completed 1894. The main differences are that the Blackpool Tower is approximately half the height of the Eiffel Tower and is not freestanding, the base being contained within buildings which house the Tower Circus. Both the Eiffel Tower and Blackpool Tower feature on the list of the World Federation of Great Towers.