Eiffel Tower was to be dismantled in 1909, when its ownership would revert to the City of Paris. The City had planned to tear it down (part of the original contest rules for designing a tower was that it should be easy to dismantle) but as the tower proved to be valuable for communication purposes, it was allowed to remain after the expiry of the permit. Eiffel made use of his apartment at the top of the tower to carry out meteorological observations, and also used the tower to perform experiments on the action of air resistance on falling bodies. For the
Eiffel Tower 20,000 flashing bulbs gave the tower a sparkly appearance for five minutes every hour on the hour. The lights sparkled blue for several nights to herald the new millennium On 31 December 2000. The sparkly lighting continued for 18 months until July 2001. The sparkling lights were turned on again on 21 June 2003, and the display was planned to last for 10 years before they needed replacing. The tower received its th guest on 28 November 2002. The tower has operated at its maximum capacity of about 7 million visitors since 2003. In 2004, the Eiffel Tower began hosting