This 13th-century castle, once home to Pope Benedict XIII, towers over a rocky cliff at the highest point of Illueca. This hotel has been listed as a National Monument since June 1931.
Spacious, air-conditioned rooms have a private balcony, a TV and minibar. The private bathroom comes with a hairdryer and amenities.
Hospederia Papa Luna has an à la carte restaurant and a café-bar with a lounge.
You can go climbing or paintballing in the surrounding area, or visit the Piedra Monastery. The famous wines of the Cariñena region can also be sampled.