Quartel do Segundo Batalhão de Guardas, Military heritage building in Parque Dom Pedro II, São Paulo, Brazil.

Quartel do Segundo Batalhão de Guardas is a two-story building with colonial and neoclassical features located in a park in São Paulo. The structure uses brick walls and rammed earth construction, decorated with colored glass doors and straight lintels that show the craftsmanship of its era.

The building was erected in 1842 and went through diverse uses including farm, convent, school, and hospital before becoming military quarters. This changing pattern reflects how São Paulo's needs shifted during the 1800s.

The name recalls the 2nd Guards Battalion, which occupied the building until 1992, when it moved to Osasco. Sergeant João Carlos de Oliveira, the athlete known as João do Pulo, served here. The CONDEPHAAT listing of 1981 was intended to allow a military museum, and a partnership between the state security and culture secretariats has proposed a cultural centre and military museum.

The building stands on Avenida do Estado beside Parque Dom Pedro II and can be seen on foot, from the metro or from the train. It has been closed and abandoned since the battalion moved to Osasco in 1992, so only the exterior is visible; broken windows, cracked walls and weeds are part of the current view.

The building has a surprising connection to the imperial family, as it may have been left as an inheritance by Emperor Pedro I to his former companion. This personal link to one of Brazil's most important political figures gives the site an unexpected romantic dimension.