Casa dos Contos is a famous museum in Ouro Preto, Brazil. Done in the baroque miner style, the museum has a rich and storied history. Built in the late 1700s, the museum initially served as a residence, as a post office, a prison, and as a foundry. It was turned into a museum when the Ministry of Finance took over the site.
The renovated mansion is now home for displays that tell of the history of money in Brazil. The museum still houses the historic foundry where gold was melted down and formed into bars. Among the exhibits in the museum include a collection of prison and torture devices used on prisoners. The upper rooms also open up to fantastic views of the Ouro Preto streets.