Torre do Castelo, Water tower observation deck in Jardim Chapadão, Campinas, Brazil

Torre do Castelo is a water supply tower in Campinas standing 27 meters tall with a capacity to hold 250,000 liters for the city's needs. The upper section functions as an observation platform where visitors can view the surroundings.

The tower was built between 1936 and 1940 as part of Francisco Prestes Maia's urban plan for Campinas; his initial idea was an obelisk, replaced by a water reservoir to meet the city's needs. A circular room was installed in 1972, the Museu Histórico da Sanasa moved in in 1991, and renovations followed in 1998.

The circular observation room has windows with labeled panels showing which neighborhoods are visible from each viewpoint. Visitors can identify different parts of the city and understand how the neighborhoods relate to each other from this vantage point.

The tower stands on a roundabout where six streets and avenues meet, so it is reached by crossing traffic rather than through a park. Visits to the lookout run on weekends and weekday afternoons, with school groups booking ahead. The six parapets of the lookout carry panels naming the Campinas districts seen from each window.

The structure sits at 735 meters elevation and offers views on clear days extending to the Serra do Japi mountain range. This distant ridge lies about 40 kilometers away and appears as a natural boundary on the horizon.