Downtown - Buenos Aires,Down Town Image Gallery,this part of the city referred to as “Downtown” or “Centro” is composed of portions of the neighborhoods, named Monserrat, San Nicolás and Balvanera. This section of the city is essentially a financial and commercial, with a very large concentration of banks, offices,shops, art galleries, auction houses, antique and collectible shops, small and big businesses, and many hotels. A large part of this city center or down town Buenos Aires, where everything is to be found,includes a wide variety of activities to entertain all tastes, as well as those seeking art,antiques and collectibles. Email: Bob Frassinetti. Art Dealer & Journalist.