An $18-million preservation project will be launched at Herculaneum, the city of ruins about 10 miles southeast of Naples, Italy. That news, announced this month by the British School at Rome, a century-old research and cultural institution, delighted me. I love the ancient places around the Bay of Naples, crammed between noisy, polluted, densely populated modern suburbs, with beautiful but vaguely malevolent Mount Vesuvius on the horizon.