Nestled between the walls of the Ebro River rises the beautiful Burgalian town of Orbaneja del Castillo, whose hallmark is the spectacular waterfall that springs from the Cueva del Agua, at the base of the rocky cirque that protects the urban area. The waterfall passes through the stone hamlet of the villa that hangs from the tuff terraces, rushing in rapids and cascades towards the course of the Ebro and giving rise to a series of pools of an extraordinary turquoise blue. The town, which is thus divided into two neighborhoods, Villa and Puebla, is one of the best-preserved ensembles of popular architecture, with huddled houses of obvious mountain style whose elegant wooden roofs seem to hang in the air.