Situated on a hill, Gardeny Castle is a medieval building that belonged to the Order of the Templars.

If we go back in history, it is clear that in the second half of the 12th century, the Order of the Temple built a convent complex on the strategic plateau of Gardeny. The mound - which even before our era was used as a base for military operations - was visited by brilliant strategists such as Julius Caesar himself, who clashed with the Pompeians Aphranius and Petreius, who settled in Ilerda in 49 BC.

During the 17th and 18th centuries, the old medieval enclosure was enlarged and transformed into a new military fortress, the design of which responded to the new defensive needs brought about by the introduction of artillery: walls flanked by bastions and surrounded by wide spaces, moats and retaining walls. The current image of this monumental complex corresponds to the remains of what was once an imposing fortress. In 2007 it was restored and houses an interpretation centre of the Order of the Temple. It is worth remembering that in 1294, the castle of Gardeny was home to Jacques de Molay, the last Grand Master of the Order of the Temple.

This castle - together with those of Miravet, Monzón, Peñíscola and the city of Tortosa - forms part of a tourist route and a Domus Templi Templar route. It is a journey through time that reveals much of the Templar heritage and legacy of the ancient Crown of Aragon.

Finally, in modern times, the Gardeny plateau continued to be an important Spanish military enclave, with the General Sanjurjo Barracks and the Templar Barracks.