Edzná Ruins, Campeche (IMAGE) University of Cambridge Caption Pictured is the 31 m tall Pirámide de los Cinco Pisos (pyramid of the five storeys), located in the Great Plaza. Credit Nick Evans Usage Restrictions Please credit to Nick Evans License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.