The Mayan city of Copán as it exists today is composed of a main complex of ruins with several secondary complexes encircling it. The main complex consists of the Acropolis and important plazas. Among the five plazas are the Ceremonial Plaza, with an impressive stadium opening onto a mound with numerous richly sculptured monoliths and altars; the Hieroglyphic Stairway Plaza, with a monumental stairway at its eastern end that is one of the outstanding structures of Mayan culture. On the risers of this 100 m wide stairway are more than 1,800 individual glyphs which constitute the longest known Mayan inscription. The Eastern Plaza rises a considerable height above the valley floor. On its western side is a stairway sculptured with figures of jaguars originally inlaid with black obsidian.
From what is known today, the sculpture of Copán appears to have attained a high degree of perfection. The Acropolis, a magnificent architectural complex, appears today as a large mass of rubble which came about through successive additions of pyramids, terraces and temples. The world's largest archaeological cut runs through the Acropolis. In the walls of the cut, it is possible to distinguish floor levels of previous plazas and covered water outlets. The construction of the Great Plaza and the Acropolis reflects a prodigious amount of effort because of the size of its levelled and originally paved expanse of three hectares and the latter because of the enormous volume of its elevated mass, which rises some 30 meters from the ground.