Braga was one of the five places in Portugal that had an electric tram system. This very old city, with its roots in the pre-historic period, is situated about 55 km north-east from Porto. Apart from the many monuments in the city itself, one of the most important destinations for visitors is the Santuário do Bom Jesus do Monte, a pilgrimage church situated on a hill about 5 km east of the city. The railway from Porto to Braga had opened on 21 May 1875 with the station at the west of the city. Soon a mule tramline was opened to connect the city with the Santuário do Bom Jesus. The mule trams were replaced by electric trams in 1914.