1. Cathédrale Saint-Front
This building completely defies what you expect from a French cathedral. Instead of the typical Gothic spires you see in Paris or Chartres, you are met with a cluster of five massive Byzantine domes that look like they were airlifted straight from Istanbul. It is a confusing, imposing, and magnificent structure that dominates the skyline from every angle. The architect who restored it in the 19th century later used it as a blueprint for the Sacré-Cœur in Paris, and the resemblance is undeniable once you stand beneath its white stone curves.
Inside, the scale feels cavernous and almost empty compared to the ornate exterior. The layout is a Greek cross, creating a vast open space that echoes fiercely. While exploring Périgueux attractions, you will inevitably use this monument as your north star; it is visible from the river, the hills, and the narrow medieval streets below. The interior can feel a bit cold, so the real joy comes from wandering the perimeter and spotting the odd gargoyles and intricate stonework up close.
Don't just look at it from the square; walk down to the river for the postcard view where the domes reflect in the water. It is less about religious reverence here and more about architectural sheer force. The surrounding streets are tight and shadowed, making the sudden opening of the square around the cathedral feel even more dramatic.