The Fountain of the Idol (Fonte do Ídolo) is a Roman fountain located in the civil parish of São José de São Lázaro, in the municipality of Braga
, northern Portugal
. Located in the former territory of the Callaici Bracari, the granite rock fountain/spring has several inscriptions in the Celtic language, dedicated to the Gallaecian and Lusitanian gods Tongoenabiagus and Nabia (built during era of Roman Emperor Augustus).
The construction of the fountain probably began in the 1st century, associated with a water cult, dedicated to the Lusitanian divinty Tongo Nabiagus, and ordered constructed by Célico Fronto.First identified by Georg Braun in his map of Braga in 1594, the document indicated the location of the spring (marked by a channel of water).
The fountain is a large granite surface, forming an elongated backrest, measuring about 3 metres wide and 1.20 metres high.On the left of the rock is a carved human figure, about 1.10 metres tall, upright, but deteriorated, and possibly male with a beard, wrapped in a toga, holding in his left arm a bulky object.It is flanked above by Latin inscription, the first word partially cut into the stone.To the right of the figure (just slightly below) is a rectangular building cut into the rock, about 0.7 metres high, 0.6 metres wide and 0.12 deep, with the worn figure of human head.
The little house is crowned by a triangular pediment with a bird engraved into its triangular form, while other Latin inscriptions are engraved into its sides, extending to the base. At the base of this granite structure flows the fountain's water.The fountain is enclosed in a modernist structure built to protect and act as an interpretive centre, within the historical centre of Braga, near the Palace of Raio and Hospital of São Marcos.
The monument is located outside of the former urban perimeter of Bracara Augusta (modern day Braga), and whose many epigraphic inscriptions permits a clear association between it and the local religious divinity at the time:Tongoenabiagus, which was associated with the goddess Nabia in Lusitanian mythology.A few indicators suggest that there may have existed, in the same location, another structure, likely a temple to the goddess Nabia (as yet undiscovered).