Vatican City's Culture
Vatican city has many customs and traditions along with social organization. As I mentioned in the people & population tab, most migrations are into Vatican City. And it is never an easy task getting in. To get in, you have to at least be a Bishop to get into Vatican City and/or qualify to be a Cardinal, and you have to be a Cardinal to qualify to be a Pope. To be a bishop, there a many things you have to become before that, but what I am trying to get at here is that it is a high honor to live and work in Vatican City and a lot of people want to have that high honor.
And getting to the high honor can be a little complicated
Religion is also another huge role in Vatican City's culture. Sense the country was founded for the purpose of being head of the Catholic Church, you can probably see that the one and only religion in Vatican City is catholicism. Because of the soul purpose of Vatican City is to be the head of the Catholic Church, Vatican City has a Theocracy government which is ruled the Pope (whom is considered to have religious power in the Catholic Church). Vatican City also does not have any kind of an economy because it receives money from the Italian government and the Catholic Church as a whole.
Art in Vatican City
Vatican City is home to thousands of famous art pieces that people come from around the world just to see. Some of these famous art pieces can mostly be found in the Sistine Chapel. Art in the Sistine Chapel is now recognized around the world and has cultural influences based of of Christianity and Catholicism.
Here is one of Michelangelo's masterpieces that can be found on the ceiling of the Sistine Chapel
Sources
Social Organization: https://www.youtube.com/watch?annotation_id=annotation_266630&feature=iv&index=7&list=SPqs5ohhass_QZtSkX06DmWOaEaadwmw_D&src_vid=OPHRIjI3hXs&v=kF8I_r9XT7A
Art in Vatican City: http://historylists.org/art/list-of-10-remarkable-religious-renaissance-paintings.html
Art in Vatican City: http://historylists.org/art/list-of-10-remarkable-religious-renaissance-paintings.html