A sixteen-and-a-half-block grid platted in 1867 as New Town San Diego holds the densest concentration of Victorian-era commercial architecture west of the Rockies. Eighty-three buildings from the 1870s through 1910s survived mid-century demolition plans, their cast-iron facades and Romanesque arches now sheltering a culinary corridor where craft cocktail bars occupy former gambling halls and farm-to-table bistros inhabit one-time bordellos. The neighborhood's transformation from red-light district to National Historic District began in 1982, when gas lamp replicas were installed along Fifth Avenue and the first wave of adaptive reuse projects converted the Louis Bank of Commerce and Keating Building into dining destinations. Today the Gaslamp Quarter serves as San Diego's premier tasting ground, where chefs layer California coastal ingredients with influences carried north from Baja and Tijuana. The district's culinary identity emerged in the early 2000s when restaurateurs recognized the inherent theater of serving ceviche beneath pressed-tin ceilings and pouring mezcal in rooms where Wyatt Earp once tended bar. Walking tour itineraries now trace a circuit from craft breweries in renovated mercantile buildings to rooftop wine bars overlooking the bay, each stop anchored by structures that predate California statehood. The pedestrian scale—most blocks measure just 200 feet—allows tasters to move between six or seven venues in a single evening, sampling everything from uni tacos to bourbon flights without losing the narrative thread of the neighborhood's layered past. Guided food and drink tours operate Wednesday through Sunday, with departure times calibrated to the rhythm of restaurant service. Daytime walks emphasize historical context, pausing at the William Heath Davis House and the old Horton Grand Hotel between courses. Evening itineraries lean into the district's nightlife energy, when the gas lamp glow intensifies and the boundary between dining and entertainment dissolves. Most routes concentrate on the Fifth Avenue corridor between Market and Island, though some operators extend south to include the newer wave of izakayas and ramen houses colonizing the blocks near Petco Park. The tours themselves function as living archives, translating architectural details into flavor profiles—a brick warehouse becomes a context for barrel-aged spirits, a former hardware store now serves as the setting for handmade pasta coursed out over two hours.