The foundation of Aljucén is estimated to be of Muslim origin, as evidenced by its name, an Arabic word meaning small castle. A testimony to this origin was the castle or stronghold that existed in the area, the remains of which were visible until recently. In a remote location, there is a railway junction of the same name.

It is also located along the route of the ancient Vía de la Plata towards the north of Mérida, settled next to the river of the same name. There used to be a Roman bridge with three arches over this river, which has now disappeared.

The village is a rural enclave, with a population of around 250 inhabitants.

The most notable landmark is the Church of San Andrés Apóstol, located at one end of the village. It is a modestly sized but architecturally interesting building, constructed of masonry and ashlars, dating back to the 16th century. Its structure is now secured by an iron band. The church has a single nave, with a front facade tower that features a beautiful Renaissance doorway of elegant design. The facade is what is known as a tower facade, as the tower is an extension of the facade.