The Louvre in Paris is one of the best and most-visited museums in the world.
Room after room is filled with art, and if you've heard about about a piece of artwork growing up in school, chances are it's probably at The Louvre.
After you battle your way through the tour group crowds to get a close-up of Psyche or the Mona Lisa, head over to Napoleon III's apartment - rooms that are covered in ornate furnishings for every inch.
In my opinion, Napoleon III's Apartments are SO much better than seeing the Mona Lisa - though I will say it's almost worth it just to see the notorious massive crowd...