Overlooked from the Aguilón rock by a 12th-century castle, the town of Aguilar de Campoo is a key point on the route of Palencia's Romanesque heritage.

Among its most attractive sights is the arcaded square, where you will find the collegiate church of San Miguel. This 14th century temple is equipped with a museum which includes the parish treasure, with precious metalwork, paintings and ivory. No less important is the monastery of Santa María la Real, a fine example of the pre-Gothic style which is among the oldest in Spain. Its church houses a museum with a rich and varied collection of Romanesque works. And, finally, is the hermitage of Santa Cecilia, complete with its charismatic tower.