The settlers of the rural areas along the St. Lawrence largely came from Normandy, and the houses they built echoed their roots. The surroundings forced enough differences that a unique style developed, and the house of the New France farmer remains a symbol of French-Canadian nationalism. These were rectangular structures of one storey, but with an extremely tall and steep roof, sometimes almost twice as tall as the house below. This roof design perhaps developed to prevent the accumulation of snow. The houses were usually built of wood, though the surviving ones are almost all built of stone. Landmarks in the rural areas were the churches and the mansion of the seigneurs. The seigneurs built much larger homes for themselves, but rarely were the manors ornate. Each parish had its church, often smaller copies of major churches in Quebec City or Montreal. A unique style of French-Canadian church thus developed.