The Walls of Avila are a Romanesque military fence surrounding old city of Avila, which is 115 Kms. (72 Miles) from Madrid. Avila is the capital municipality and province of Castile and Leon, Spain.
The importance of this walls, is derived from the fact that they are the best preserved medieval wall in Spain, and probably in Europe. Due to this, they have been declared a World Heritage Site.
The command and supervision for the construction of the wall, was responsibility of the two masters of geometry: the Roman, Casandro, and the French Florín de Pituenga.
Studies note that the defensive structure relating it to the art of building walls and castles, show an Andalusian style.
The military nature of the wall is essentially defensive, and remained like that throughout the times, even with the reforms made for the reinforcement made in the fourteenth century.
The Wall is Spanish State Owned and operated by the Municipality of Ávila. Some sections, which coincide with some of the buildings, such as certain palaces and churches (including the cathedral) are private.