1: What is the name of Leonardo's most common painting?
2: How did the Mona Lisa become famous?
3: How old is the famous piece of art?
4: Who is Mona Lisa?
5: Are there other paintings of the Mona Lisa done by Leonardo?
6: What is so unique about the Mona Lisa?
7: The Mona Lisa is unfinished.
8: Who stole the Mona Lisa and made it famous?
9: How long had the Mona Lisa been missing?
10: What museum was the Mona Lisa in when it was taken?