One symbol you’ll find only in Mexico is its national flag—a vertical tricolor of green, white, and red with the Mexican coat of arms centered on the white stripe.
Depicts an eagle perched on a prickly‑pear cactus devouring a serpent—the Aztec glyph for Tenochtitlan, the ancient capital. This legend guided the Mexica to found their city on Lake Texcoco.
The flag’s design, proportions, and use are regulated by Mexican law (Ley sobre el Escudo, la Bandera y el Himno Nacionales). Unauthorized alterations are prohibited.
The flag flies over government buildings, schools, and homes; it’s central to Independence Day (16 September) and Flag Day (24 February) celebrations.