The Pyramid of the Niches is the most iconic structure at the pre-Hispanic city of El Tajín in Veracruz, Mexico, a major civic and ceremonial centre of the Classic Veracruz civilisation that flourished between 600 and 1200 CE. The pyramid is renowned for its distinctive design, featuring 365 symmetrically arranged niches, a rare and highly unusual architectural element in Mesoamerica, often interpreted as having calendrical or cosmological significance. El Tajín was an influential hub for regional political, economic, and cultural exchange, and its importance is further reflected in the discovery of 21 ball courts, indicating the central role of ritual sport and competition in city life. Recognised as a UNESCO World Heritage site, El Tajín offers deep insight into a sophisticated and influential yet still enigmatic civilisation.