The Eiffel Tower, one of the most visited tourist sites in the world, closed on Monday as staff went on strike in protest against the way the Paris monument is managed financially, disappointing the crowds below. The strike comes as Paris prepares to host the 2024 Summer Olympics, which begin on July 26 and will feature metal from the tower in the winners' medals. "It’s a real shame, really, because we come just for three days, and we’re not going to be able to get up,” Nelson Navarro, from Norfolk, England, said.