Перепишите текст в пассивном залоге.Где это нужно укажи что произвёл действие. Guastave Eiffel designed the Eiffel Tower.Workers built it between 1887 and 1889.They used iron to built it.The City Mayor opened it to the public on May 6th,1889.Many tourists visit the tower every year.They buy souvenirs,take photos of Paris and admire the view from the top.