The Faces in the Concrete

A human face stares up blankly, embedded in a concrete floor. This isn't a painting;

it is a stain that formed overnight in a kitchen in Spain. In 1971,

Maria Pereira tried to scrub it away, but the eyes just watched her. Terrified,

her husband destroyed the floor with a pickaxe and poured new cement. But one week later,

the face came back. Then, dozens more appeared—men, women, and children,

their expressions screaming in agony. Scientists analyzed the concrete and found no paint and

no dye. When they finally dug beneath the house, they discovered

the terrifying truth: the kitchen was built directly on top of a medieval mass grave.