Bohonal, in the north-east of the province of Cáceres, is home to the ruins of the ancient Roman city of Augustóbriga, buried below the town of Talavera la Vieja. The area was flooded by water when the Valdecañas reservoir was built in 1960.
The ruins of Augustóbriga include the temple and other historical references of what the city was like thanks to documents from Cornide and Hermosilla in the 18th century and, later, Mélida.
We know that walls protected and surrounded the city in Roman times. The centre was where the forum was located, surrounded by administrative and religious buildings.
The most prominent of the ruins are those of the temple known as ‘Los Mármoles’, dating from the 2nd century, which was dismantled stone by stone in order to rebuild it on an inlet above the maximum level of the reservoir water, 6.5 kilometres from the ancient settlement. Four front and two side columns form its portico or main façade on which the architrave, and, above it, there is a small rounded arch. The building is made of granite.
Together with the temple, there were also three column fragments from the so-called Temple of La Cilla.
The city had an aqueduct that was one metre tall, as well as a system of underground channels that distributed water from a reservoir. There are also remains of thermal baths and roads, the latter of which can be found near Alija Castle.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.