The document describes traditional houses from different regions around the world, including Spanish houses made of bricks and tiles, Russian Isbas made of wood and straw, Mongolian yurtas made of wood and wool, Senegalese cases made of clay walls and straw roofs, Greenlandic igloos made of ice, Peruvian palafitos made of wood and built over rivers, and New Zealand Maori wharenuis made of materials from the forest like wood, reed and bark.