Adobe is also known as mud brick, which is a building material made from organic materials like mud and is among the earliest building materials used around the world. Most of the adobe structures resemble to cob and rammed-earth buildings. Among the popular countries in the world that use adobe are from Middle East, North and West Africa, West Asia, South and South Western America, Spain and Eastern Europe. Thousands of years ago, adobe had been used by local folks of America specifically in Southwestern US, Mesoamerica and South America, especially in the Andean region. And before the introduction of making the bricks done by the Spanish, Pueblo people used to build their adobe houses with handfuls of adobe. These bricks were popular in Spain from 8th century B.C. onward, or Late Bronze Age and Iron Age. Adobe bricks vary in size that would sometimes range from the size of an ordinary baked brick or may reach between one to two yards known as adobines.