PARIS - The Eiffel Tower and other Paris landmarks announced early closures over the weekend as a quarter of mainland France was under the highest heat alert level on July 11 in the third heatwave to hit the country since May.The operator of the Eiffel Tower said the latticed-steel monument would “exceptionally close” early on July 11 and 12 at 4pm local time (10pm Singapore Time), “due to the high temperatures forecast”.The 324m tower, which attracts seven million tourists a year, usually stays open past midnight during the high season.Two of the French capital’s most famous museums, the Louvre and the Musee d’Orsay, have taken similar measures.The Louvre, the most visited museum in the world, said on July 9 it would close at 4 pm from July 10 through to July 13.The Musee D’Orsay announce