Tarragona, like many ancient cities, was dismantled by its citizens for building anew. Pilfered material was used to construct new structures so that, over time, many buildings had a collage of stones from different periods, like the layers of a cake, offering a historic timeline For me, what really distinguished the town from other Unesco sites is the way in which the vestiges of ancient ruins and Roman arches have been incorporated into present-day buildings, even into the basements and cellars of apartments, homes and offices. I peer through the glass doors of the Caixa Bank, amazed to see an ATM machine placed nonchalantly near ancient stone walls and arches, a part of the foundations of the Roman circus. Beneath the Archaeological Museum is the entrance to the old Roman circus built by Emperor Domitian, through which spectators would have walked in two thousand years ago. I see the massive stone walls and ruins of the Provincial Forum in the middle of a square, with children riding their cycles through its portals. Talk about rubbing shoulders with history. Bits and pieces of the Roman civilization entrance me at every point I touch rough stones with the names of Roman masons engraved on them, inscriptions embedded into the walls of homes, even love poems composed by the ancients. I am fascinated by the sight of medieval staircases under modern glass floors, and massive stone foundations that could be thousands of years old.