Photo: Ziegler175, CC BY-SA 3.0 via Wikimedia Commons
A Gothic monastery dating from the 13th and 15th centuries, it operated until seized by the Spanish government and forced to close in the late 19th century. The chapter house is immediately adjacent to the cloister (with a lovely rose garden), and contains several early 15th-century Gothic frescoes including a representation of the Dansa de la Mort ('Dance of Death').
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Castillo de Morella / Morella Castle
This large Moorish castle was largely built in the 13th century atop earlier Iberian and Roman foundations, and later modified during the medieval period. The castle was taken by the mercenary El Cid in 1084, but fell back under Arab control until the arrival of Jaime I and the reconquista in the 13th century. The castle was fought over during a number of later wars, most recently during the Spanish Civil War. Although now mostly in ruins, there are several interpretive exhibits (Spanish only), and there are great views from the top.
Iglesia de Santa María / Church of St. Mary
Constructed mostly between the 13th and 14th centuries, and completed in the late 16th century, the church is considered to be an excellent example of Valencian Gothic and Renaissance architecture. Especially noteworthy on the exterior of the building are the two main entrances: the larger gate of the Apostles (from the 14th century), and the smaller gate of the Virgin (15th century). Special features inside include the spiral staircase leading to the choir, original stained glass windows from the 14th century, the churrigueresque Baroque altar, and the organ, which is considered to be one of the best in the Valencian Community.
Archpriest Museum of Santa Maria
Has a collection of medieval paintings, manuscripts, and religious art from the 15th to 19th centuries.
Ayuntamiento / Town Hall
The building dates from the 14th century, and has two Gothic rooms on the ground floor used for art exhibits and cultural events.
Museo de Dinosaurios / Dinosaur Museum
The small museum showcases dinosaur bones and other fossils discovered in the area, and has an interactive exhibit popular with children.