Students have excavated the vaults of the 1st-century AD Roman arena, near the amphitheater. The plans just inside the gate show that the vaults now visible formed only a small corner of a vast space (350 yards long), where 23,000 spectators gathered to watch chariot races. As medieval Tarragona grew, the city gradually engulfed the circus.
Pl. del Rei, Rambla Vella s/n, Tarragona, Catalonia, 43004, Spain