The biggest park in San Telmo is Lezama, a giant green hill which fills up on weekends with sun-bathers, mate drinkers and chess players, along with some market stands. The park also is home to the Museo Histórico Nacional.
Are 24 hours enough to become enamored of a new city? Well, Buenos Aires worked its magic quickly on us. After a long flight and a stressful process to get our dog through customs, we didn't get into our place until very late.