Trecco on Instagram: "The Louvre in Paris, France is one of the most popular and iconic museums in the world. No surprise when it’s home to the Mona Lisa! But this could mean longggg queues. Instead of waiting for hours outside, check out this secret side entrance😉 We guarantee the lines will be much shorter! But don’t forget to book your tickets online in advance! You can pick a specific time slot to go. Keep in mind the Louvre is hugeeee so you’ll need a decent amount of time to…