🇲🇽 Mexico · Pyramid
Pyramid of Kukulkán (El Castillo)
Terminal Classic to Early Postclassic (Maya-Toltec) · Maya (Itzá) / Toltec-influenced
Stepped pyramid-temple at Chichén Itzá with 365 steps representing solar year; equinox feathered-serpent shadow (Kukulkán) descends balustrade.