Ok, so they weren’t buried together then? Paul is outside the Basilica? Is there a separate building?
Saint Pauls Outside the Walls is a totally different basilica, it is called this because it is right outside the ancient Roman wall. Both basilicas were built a top the tombs of the Apostles who were martyred on different occasions and buried in different locations. Of course, there are some who claim that Saint Peter was never in Rome.
I've been to that basilica and it is beautiful. I love the statue of Paul in the courtyard.