The Molinete Archaeological Park, one of the largest in Europe in an urban area, is the result of the urban reform carried out in 2008, thus recovering the old neighbourhood of the same name, which had been degraded over the centuries, as a landscaped public space for the city.
All the remains of the different occupations of the hill throughout history have been integrated into the park:
- From the founding period of the Carthaginian city are preserved the structures of the first city wall which, as in the section preserved at the site known as the Punic Wall, was formed by two parallel stretches with braces that formed the casemates.
- The Temple of Atargatis is also of Punic origin, although it was remodelled during the Roman period, a time to which the floor decorated with a mosaic and a salutatory inscription corresponds. The Latin text reads Atargate salud et eo melius, which translates as 'Atargatis, health and all the better'.
- The hill was presided over by an Italic Temple from the 2nd century BC, which was accessed via the great monumental staircase and ramped accesses that have been fossilised by the current access to the park. For its construction and accesses, use was made of the existing Hellenistic terracing system, which was reinforced with one-metre-wide walls lined with andesite stone.
- The 16th century saw the construction of a wall adapted to the needs of pyro-ballistic artillery, the Muralla del Deán (Dean's Wall), with circular towers and casemates.
- The name of the hill comes from the structures that are still preserved today, which correspond to two cereal mills, which, taking advantage of the height and aligned with the mouth of the port, easily captured the winds for their operation.
- During the civil war, the city of Cartagena, as a Republican naval base, was a priority target for bombing. To protect the civilian population, a network of shelters was built to take advantage of the city's topography. Of the shelters dug into the hill, there are two entrances along the park's route.
As far as the botany is concerned, the tree species are autochthonous and need little water (lavender, rosemary, esparto, olive trees and cypresses) planted in the different rest areas, which favour the appearance in every season of the year, also creating wide viewpoints and terraces with the added attraction of the magnificent panoramic views of the city that can be enjoyed from the top of the hill.