I visited this WHS in May 2014. Before heading towards the city proper, I stopped at the Pont de Diablo park (also known as Pont de les Ferreres) to see the Roman Aqueduct. The park itself is in a rather pitiful state although there are signs which state that there should be an EU funded project underway soon to bring the park back to its former glory. The aqueduct itself though has already been restored and it is in good condition. You can also walk on top of it from one side to the other. It's an interesting stop but the aqueduct is definitely not as grand as the Pont du Gard in France or the one in Segovia, Spain. Later on, I proceeded to the city to visit the other inscribed archaeological remains. The most noteworthy of them is the Roman Amphitheatre and although it isn't the best I've seen so far, its position in front of Playa El Milagro and the Mediterranean sea make it quite picturesque. I enjoyed my day trip in Tarragona however this isn't anywhere near Spain's best WHS nor is it one of the world's best WHS for Roman remains.