I take myself on a six-hour walk through town today. This is easy to do, especially if you stop frequently to fuel up on espresso and pastries. I start at my apartment door, then wander through the cosmopolitan shopping center that is my neighborhood. (Though I wouldn't exactly call this a neighborhood, not in the traditional sense. I mean, if it is a neighborhood, then my neighbors are those just-plain-regular-folk with names like the Valentinos, the Guccis and the Armanis.) This has always been an upscale district. Rubens, Tennyson, Stendhal, Balzac, Liszt, Wagner, Thackeray, Byron, Keats--they all stayed here. I live in what they used to call "The English Ghetto," where all the posh aristocrats rested on their European grand tours. One London touring club was actually called "The Society of Dilettanti"--imagine advertising that you're a dilettante! Oh, the glorious shamelessness of it . . .

I walk over to the Piazza del Popolo, with its grand arch, carved by Bernini in honor of the historic visit of Queen Christina of Sweden (who was really one of history's neutron bombs. Here's how my Swedish friend Sofie describes the great queen: "She could ride, she could hunt, she was a scholar, she became a Catholic and it was a huge scandal. Some say she was a man, but at least she was probably a lesbian. She dressed in pants, she went on archaeological excavations, she collected art and she refused to leave an heir"). Next to the arch is a church where you can walk in for free and see two paintings by Caravaggio depicting the martyrdom of Saint Peter and the conversion of Saint Paul (so overcome by grace that he has fallen to the ground in holy rapture; not even his horse can believe it). Those Caravaggio paintings always make me feel weepy and overwhelmed, but I cheer myself up by moving to the other side of the church and enjoying a fresco which features the happiest, goofiest, giggliest little baby Jesus in all of Rome.

I start walking south again. I pass the Palazzo Borghese, a building that has known many famous tenants, including Pauline, Napoleon's scandalous sister, who kept untold numbers of lovers there. She also liked to use her maids as footstools. (One always hopes that one has read this sentence wrong in one's Companion Guide to Rome, but, no--it is accurate. Pauline also liked to be carried to her bath, we are told, by "a giant Negro.") Then I stroll along the banks of the great, swampy, rural-looking Tiber, all the way down to the Tiber Island, which is one of my favorite quiet places in Rome. This island has always been associated with healing. A Temple of Aesculapius was built there after a plague in 291 BC; in the Middle Ages a hospital was constructed there by a group of monks called the Fatebene-fratelli (which can groovily be translated as "The Do-Good Brothers"); and there is a hospital on the island even to this day.

I cross over the river to Trastevere--the neighborhood that claims to be inhabited by the truest Romans, the workers, the guys who have, over the centuries, built all the monuments on the other side of the Tiber. I eat my lunch in a quiet trattoria here, and I linger over my food and wine for many hours because nobody in Trastevere is ever going to stop you from lingering over your meal if that's what you would like to do. I order an assortment ............