For 10 points, name this city founded where a snake-eating eagle was perched on a cactus, the Aztec capital.
An artifact from this city may have represented the southern stars through a goddess's headdress of marigolds, and was found in a structure in this city that emulated a mythological "Serpent Mountain." After a snake goddess's son led a rebellion during an idol procession of this city's patron god, his heart was thrown to the spot where this city was founded. A stone at the base of a temple in this city depicts the dismemberment of a moon (*) goddess who led her 400 brothers to decapitate their mother. A blue water pot found in this city was dedicated to a rain god who, after his first wife was kidnapped by a night god, married a jade-skirted goddess. Half of the Templo Mayor in this city was dedicated to a "left-handed hummingbird" god. For 10 points, name this city founded where a snake-eating eagle was perched on a cactus, the Aztec capital.
An artifact from this city may have represented the southern stars through a goddess's headdress of marigolds, and was found in a structure in this city that emulated a mythological "Serpent Mountain."
Tenōchtitlan [prompt on Mexico City]