The Basilica of St. Peter in the Vatican City of Rome is part of the UNESCO- world cultural heritage. It is considered to be the largest church architecture in the world (length 211.5 m, height 132.5 m, dome diameter 42 m) which attracts thousands of visitors from all over the world every day wanting to visit the burial site of the apostle St. Peter and the principal church of the Pope. The Basilica of St. Peter as it stands today is the creation of many generations of architects. It reflects the spiritual conviction and the aesthetic ideals of the renaissance and baroque eras. From an architectural point of view, the Basilica of St. Peter is a typical renaissance building that was completed in a baroque style.