All the answers to your questions about Barcelona are now practically at a single click from you, using the following list of links grouped by themes where you will be able to find useful information about the city of Barcelona:
TOWN HALL and GENERALITAT
Barcelona's Town Hall
Generalitat de Catalunya
EMERGENCY SERVICES
Police
Traffic police
Firemen
TRANSPORT
Aerobus T1
Aerobus T2:
Metro and FGC
Bus
Taxi
WEATHER
Weather forecast
ACTIVITIES
Barcelona routes
Touristic activities
Shopping
Nature activities
Bars, restaurants, discos
Culture
Fun