May is the perfect time to visit France, with mild weather making it ideal for sightseeing. In Paris, explore the Louvre Museum for a glimpse of the Mona Lisa, admire the grandeur of the Arc de Triomphe, and visit the Notre-Dame of Paris cathedral, a 12th-century Gothic masterpiece. No trip to the capital is complete without standing beneath the Eiffel Tower, catching a show at Palais Garnier, and marvelling at the ceiling of Versailles Palace. Take a leisurely stroll through the Jardin du…