El hundimiento de la Buitrera Historical milestone · Cabeza la Vaca, Tentudía, Badajoz Image of Cabeza la Vaca, not of the place itself. The Lisbon earthquake caused part of a hill in Cabeza la Vaca, the Buitrera, to collapse, from which a large amount of water gushed out. 1755 Photo: Marbregal (CC BY-SA 3.0) What to see and do in Cabeza la Vaca