On May 3, the Day of the Holy Cross, Mexican builders place a cross “en la parte más alta de la obra” (at the highest point of the building site). The date is also known as the Day of the Mason. On many sites, El Imparcial reported in 2026, “se realiza una comida especial para los trabajadores” (a special meal is held for the workers).
A saying of the trade insists on it: “si no hay fiesta, la obra se cae” (if there is no party, the building falls down).