On the 26th March, the Earth will once agian switch all of the lights off for one hour. Barcelona is no different and so between 20.30 and 21.30, many of the main attractions in the city will be plunged into darkness such as La Sagrada Família, La Pedrera and the Magic Fountains so be aware if you are in the city at this time.

Book holiday rentals Barcelona for Earth Hour 2012