Ribera Sacra is one of Galicia's least known wine appellations, yet it is producing some of Spain's most interesting wines.  The very small area has attracted some top wine makers and small, artisanal projects due to its unique and challenging landscape.  The wines, produced from unique indigenous varieties, are light, yet intense, and very original.  They are mostly white, but the reds are even more surprising, especially in a Spanish, hot climate context.  There are many great wines that represent this unique terroir, including the spectacular El Pecado, a most unique red made by innovator enologist Raul Perez.  The wines that inspired this article are from Dominio do Bibei, a project from the wine superstar couple Sara Pérez and René Barbier.