The City of St Lizier is an an example of living antiquity. For some 1400 years it was the seat of famous Bishops of the Area, including St Valier, synonymous with the highest peak of the mountains of the Couserans, and St Lizier himself, a 6th century Bishop. The main cathedral was not built until the 11th century, combining Roman and Gothic architecture and boasting a good selection of frescoes, still visible.
The hilltop citadel is twenty minutes drive from Tourné or can be accessed via the voie verte cycle track. The citadel has not commerce save a single cafe which sets up in the cloisters of the cathedral grounds.