A ruka or ruca is a traditional Mapuche house type. Rukas were originally round with a conical roof. Rucas are typically built communally. Rukas does traditionally lack windows and are made up a single open space in the interior. The interior of the rukas are organized around a central fireplace. Travellers in the first half of the 20th century compared the housing conditions of rukas favourable to the tenements of Santiago and the countryside cottages of non-Mapuche Chilean farmers.