In 1990, during development work on the Sous-Bie car park, a powerful Gallo-Roman retaining wall was excavated over a length of more than 140 metres. Dating from the 1st century AD, it takes the form of a series of concave hemicycles regularly reinforced by impressive oblique buttresses. This wall, which is no less than six metres high, forms the foundations of the eastern front of the 14th-century city wall, giving it a linearity that is unusual in Langres. This unexpected discovery is particularly rare in Gaul. The latest archaeological hypotheses suggest that such a civil engineering effort could only have supported a large-scale monumental complex, perhaps the forum of the Pax Romana...
Mur de soutènement gallo-romain
