and the Castle of Torrente de Cinca. In addition, the region has three museums in Mequinenza (grouped in the Museums of Mequinenza) and two located in Fraga as the House Museum of Salvador Sabaté and the Palace of Montcada. Culture and heritage Castle of Mequinenza The castle stands at the edge of a great cliff overlooking the confluence of the Ebro, Segre and Cinca rivers. Its plan is an irregular quadrilateral with seven rectangular towers except one which is pentagonal. Two towers flank the small semicircular door protected by a portico. Few fortresses will have a better location than this, contemplating an extensive and impressive landscape on the confluence of the three rivers and their surrounding lands until reaching the Pyrenees at the horizon. The noble family of Moncada, lords of the barony of Mequinenza, chose this eagle's nest to create a castle-palace fortification. The building is an authentic masterpiece, one of the best that Gothic art bequeathed to the Crown of Aragon. It is dated from the 14th and 15th centuries. Initially, it was possibly an Arab fortress built by the Berber tribe of the Miknasa towards the 12th century. The tribe created the town and also give its name. With the reconquest it fell to Ramón Berenguer IV. After being a crown possession, it was given to the noble family of Moncada. One of the great sieges of the castle took place during the Peninsular War when it was conquered by the French Napoleonic troops of Marshal Suchet; it belonged to the French government until 1814. "Mequinenza" was inscribed in large letters on one of the outer columns of the Arc de Triomphe in Paris to commemorate one of the great French victories in the Iberian Peninsula. Currently the castle is privately owned by the ENDESA Foundation. In order to visit the castle it is necessary to put in a request in advance at the Tourist Office of the City Council of Mequinenza. Guided free tours are held on Tuesday mornings with prior request. Museums of Mequinenza In the Museums of Mequinenza it is possible to explore an underground coal mining gallery with more than 1000 meters in the Museum of the Mine, explore the history of the population until the disappearance of the old town under the waters of the Ebro river in the Museum of History or discover how was the Prehistory in the Museum of