66 Carretera de Montjuïc Barcelona, CT 08038
The bastion is a defensive structure, usually triangular or pentagonal in shape, that protrudes from the corners of the walled body of the fortress and is used as an advanced artillery defense platform since it allows a defensive depth that forces the 'enemy to retreat and position itself further from the fortress. In addition, it facilitates the coverage of the flanks with crossfire.