St Peter's Basilica was my favourite thing about Rome. It was breathtaking, words can't even describe the feeling it gave me and the beauty of it - it was the single most beautiful building I have ever stepped foot into. St Peter's is one of the most famous places of worship in Italy, in the World even, steeped in history and meaning, and a mecca for Roman Catholics. Featured in films, TV, books, it's pretty famous and is the even the final resting place of every Pope since St Peter himself.