San Telmo, Buenos Aires
Concierge.com's insider take:
With its faded Italianate tenements (once the mansions of the Buenos Aires upper-crust) and cobbled calles, San Telmo is one of the most atmospheric of B.A.'s 48 barrios. Every Sunday, Plaza Dorrego hosts the Feria de San Pedro Telmo, a lively urban bazaar full of antique stalls and impromptu tango. (The neighborhood is known for its abundant antique dealers.) During the week, the plaza, with its outdoor cafés, becomes an ideal oasis for a coffee or an ice-cold Quilmes, the Budweiser of Argentina.