Join 科学・技術 upcoming events being held in Tres Marías. Tres Marías is a picturesque town in the Mexican state of Aguascalientes, known for its stunning natural beauty, colonial architecture, and annual cultural events, including the lively Fiesta de la Virgen de la Asunción and the colorful Festival de las Calaveras, making it an ideal destination for those seeking a rich and authentic Mexican experience.