Plaza San Martín, Buenos Aires
Concierge.com's insider take:
Perched on a high bluff, the picturesque Plaza San Martín is one of B.A.'s most recognizable landmarks and a popular rendezvous point. Laid out by the indefatigable Carlos Thays, the park is planted with more than 300 trees, including a towering stand of tipas and what might be the city's most illustrious plant citizen: an absolutely Brobdingnagian gomero tree, complete with straining supports to keep the branches—some as thick as a car—aloft. Borges used to love to wander here, as do modern-day porteños, who thrill to the view of the Big Ben–like Torre de los Ingleses.