It doesn’t really compare with the hilltop cross in Rio de Janeiro, but the 100ft reinforced-concrete Cruceta del Vigía looking over Ponce is one of the city’s more reliable points of orientation and offers a cracking view from its upper echelons. During the 19th century the site was used by lookouts for the Spanish Crown, watching for signs of smuggling along the coast. Today it shares grounds with a scrubby Japanese garden, included in the admission price.
You might feel the view is better in the open air at the base, without the hazy obstruction of worn Plexiglas windows.
The Museo Castillo Serrallés is right next door; combo tickets which include the attractions here and those of the entire Museo Castillo Serrallés complex are available.