Multiple choice general knowledge It takes ------ light bulbs to make the Eiffel Tower sparkle at night 10,000 50,000 20,000 30,000 Reveal answer Fill a bubble to check yourself C Correct answer Explanation The Eiffel Tower's sparkle effect uses 20,000 light bulbs that illuminate for 5 minutes every hour. This lighting system was installed for the millennium celebrations in 2000 and has become one of Paris's most iconic nighttime attractions.