The remains of a major Aztec temple and a ceremonial ball court have been discovered in downtown Mexico City, shedding new light on the sacred spaces of the metropolis that Spanish conquerors overran five centuries ago, archaeologists said on Wednesday.

The discoveries were made on a nondescript side street just behind the city's colonial-era Roman Catholic cathedral off the main Zocalo plaza on the grounds of a 1950s-era hotel.

The underground excavations reveal a section of what was the foundation of a massive, circular-shaped temple dedicated to the Aztec wind god Ehecatl and a smaller part of a ritual ball court, confirming accounts of the first Spanish chroniclers to visit the Aztec imperial capital, Tenochtitlan.