A large part of the visual variety of towns and villages appearance in Europe is due to the colours of the local stones, or the absence of good building stones

A large part of the visual variety of towns and villages appearance in Europe is due to the colours of the local stones, or the absence of good building stones that's the reason why Toulouse is built of bricks, for instance: https://upload.wikimedia.org/wikipedia/commons/thumb/4/4e/Toulouse_Capitole_Night_Wikimedia_Commons.jpg/1920px-Toulouse_Capitole_Night_Wikimedia_Commons.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/4/4e/To... or why some places have wooden churches: https://upload.wikimedia.org/wikipedia/commons/9/9a/Lac-du-der-chatillon.jpg https://upload.wikimedia.org/wikipedia/commons/9/9a/Lac-du-d... And other black volcanic stone ones: https://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Cathedrale_clermont_montjuzet_2015.jpg/1280px-Cathedrale_clermont_montjuzet_2015.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/f/f9/Ca... Or gleaming white castles: https://upload.wikimedia.org/wikipedia/commons/4/47/Chambord_Castle_Northwest_facade.jpg https://upload.wikimedia.org/wikipedia/commons/4/47/Chambord... Burgundy is known for its yellow stone, clearly visible here in Beaune: https://upload.wikimedia.org/wikipedia/commons/thumb/c/c2/Hospices_de_Beaune.jpg/1024px-Hospices_de_Beaune.jpg https://upload.wikimedia.org/wikipedia/commons/thumb/c/c2/Ho... Or here near Solutré: https://upload.wikimedia.org/wikipedia/commons/8/86/Solutr%C3%A9_Nord.jpg https://upload.wikimedia.org/wikipedia/commons/8/86/Solutr%C...