🇫🇷 France · Megalith
Tumulus de Dissignac
Early Neolithic · Atlantic Breton / Loire Neolithic (Castellic / Chasséen contact)
Double passage tumulus near Saint-Nazaire — two parallel graves (11 m and 9 m) under one 28 m mound, c.4300 BCE.
🇫🇷 France · Megalith
Dolmen de Bagneux
Middle Neolithic · Loire Neolithic / Chambon group
Largest French dolmen — 23 m long passage of taf limestone slabs with 40-tonne capstones near Saumur.