Holy House of Mercy

Established by the first Bishop of Macao in 1569, this institution was modelled after one of the most prominent and oldest charitable organizations in Portugal, and was responsible for founding in Macao the first western-style medical clinic and several other social welfare structures that still function to this day. The building is neo-classical in the overall architectural treatment, but also depicts traces of mannerist influence.

Address: Senado Square 
Opening hours (Museum): 10 a.m. - 5:30 p.m. (closed on Mondays and public holidays)
Admission Fee (Museum): MOP5; students and elderly people (over 65 years old): free.

source http://en.macaotourism.gov.mo/sightseeing/sightseeing_detail.php?c=10&id=141#.WDf2r_mLTcc