There is an ancient Roman sepulchral road just a couple of blocks from my hotel. A nearby plaque states that this road led directly to the north gate of the ancient Roman city of Barcino that existed here. The city name is said to come from Barca, the family of Hannibal, Hamilcar, Hasdrubal, etc. Hannibal Barca was the Carthaginian general who invaded Italy via the Alps during the 2nd Punic War in the 3rd century B.C.
This photo of the excavation shows lines of tombs and the road between them. You can compare modern ground level with that of 2,000 years ago. This illustrates a general principle of archaeology. The lower you go, the older things are.
Here is a photo facing the other direction.
Paul the Apostle expressed a desire to go to Spain (Romans 15:24-28), but it is not known that he did so. One may speculate that if he was able to make the journey, he could have disembarked here. The harbor is within walking distance of my hotel, and the ancient city was basically across the street from where I write this post.