Benito Hernandez stands outside his home near San Jose de Las Piedras in Mexico's northern state of Coahuila. For over 30 years, Hernandez, his wife Santa Martha de la Cruz Villarreal and their family have lived in an odd sun-dried brick home with a huge 40 metre (131 feet) diameter rock used as a roof. The dwelling is found close to the town of San Jose de Piedras, a remote community located in the arid desert of Coahuila, some 80 km (49 miles) from the border with Texas. Picture taken January 16, 2013.