For over 30 years, Benito Hernandez and his wife 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 kilometres (49 miles) from the border with Texas. The residents of this remote and sparsely-popluated town make a living from planting and collecting the small desert Candelilla plant, which is native to the area.
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