The BCN Open Data Portal makes public the data generated by the Barcelona City Council, excluding those subject to privacy, property or security restrictions. Data are available to everyone in standard, open, digital formats, that are clearly structured and comprehensible. In my opinion, this is a valuable example of how governments at different levels (in this case the municipality, which is the level of government closest to the citizen), can make efforts to facilitate access to the great amount of data they collect and to encourage citizens to reuse them.