The Celler Cooperatiu de Gandesa is a modernist building located in Gandesa (Terra Alta), the work of the architect Cèsar Martinell i Brunet. Completed in 1920, it is considered one of the Cathedrals of wine, and is a Cultural Asset of National Interest of the Generalitat de Catalunya, and one of the Seven Wonders of Catalonia chosen in 2007. It is a work declared good cultural of national interest.