Oriental municipality of the region nailed to shores of the Gállego on the border with to the neighbor Hoya de Huesca. To he associates the nucleus of House of Esper.

Attractive locality structured by a series of streets that form an irregular tracing where we are with different interest constructions:

.-Castillo of Crossbow. Constructed in 1083 by the king of Aragon Sancho Ramírez. It possesses a castellated tower, later walled. The area constructed later like palace about the tower, in the walled enclosure, is of Gothic style.
.-Ermita of San Vicente. His crucified Christ, in Romanesque style, is exhibited at present in the Diocesan Museum of Pony.
.-Ermita of Our Lady of Miramonte, of the XIIth century, in style Romanesque.
.-Iglesia parochial of Santa Ann. It preserves a reredos of Saint John Baptist, Gothic Hispanic - Fleming of the XVth century and other of Santa Ann, of Renaissance style.
.-Ermita of Saint John of Barto, at present in ruins.
.-Cruz of Santa Ann, a peirón, that was moved of his original emplacement.

The environment of the locality offers numerous possibilities for everything class of visitors. From a placid and calm walk for sabinar or for the reservoir of Ardisa located in the proximities, up to a more intense enjoyment of the nature realizing stresses in B.T.T. for the area.

Also In his proximities the Prey of Ardisa is, constructed year 1932, where from there turn aside the waters of the Rio Gállego to Reservoir of the Sotonera. It will come to the same Detainee to end Channel of the Bardenas, when his project could finish: Receiving in this river Gállego, after covering 132 Km, them waters of the Aragon. Almost a sleep!.
Also, very close to this prey, the Castle - palace is of Crossbow, magnificent set of the XVth and XVIth centuries, with a Tower head office of the XIth Century constructed by Sancho Ramírez. (ftes and text to see links and http://es.wikipedia.org/wiki/Ardisa)