House of the Ottoni, Colonial museum in Serro, Brazil.

The House of the Ottoni is a two-story colonial building with white walls, wooden details, and Portuguese architectural elements from the 18th century, now serving as a regional museum. Its rooms preserve a collection of religious artworks and historical objects from the early settlement period.

Built in the 18th century, the house belonged to Manuel Vieira Ottoni and his family, which produced figures such as Teófilo Benedito Ottoni and Cristiano Benedito Ottoni. In 1918 Julio Benedito Ottoni donated it to the Union for the Patronato Agrícola do Serro, and it joined IPHAN's network in 1942. The building was restored in 1980 to house the museum.

The building displays religious artworks from the colonial period, including processional images used in church celebrations and objects from a demolished chapel. Visitors can see how Catholic faith shaped the daily life and artistic work of the community.

The house sits in the lower part of Serro, beside the Igreja do Senhor Bom Jesus de Matosinhos, so it can be combined with a walk through that lower town area. The museum belongs to the Iphan house network and to the Instituto Brasileiro de Museus; confirm visiting conditions before travelling, as the sources give no opening days or hours.

The building was also a family residence and retains original features of daily life from that era. The way rooms are arranged and furnished reveals how wealthy families actually lived during the colonial period.