On August 23, 1971, strange faces began appearing in the kitchen floor of Maria Gomez Pereira's home in Belmez de la Moraleda, Spain. It was discovered that the home was built on the site of a former graveyard. Thousands of people came to see the mysterious Belmez ghost faces. Tests on samples from the floor were inconclusive as to the cause of the faces. The phenomenon remains unexplained and the house continues to attract visitors hoping to see the faces.