Joinville's belvedere was built on the top of Boa Vista Hill allowing a view of nearly the entire city, the Babitonga Bay and São Francisco do Sul. Created to give visitors a 360 degrees sight, it's one of the city's most beautiful attractions. Free access to the public.
Joinville, founded in 1851 in Santa Catarina, Brazil, known as The City of Flowers, with a population of about 500 thousand inhabitants and the 13th highest HDI (human development index) of the country, the highest of the state. Source: Wikipedia (Portuguese)