The vocalist or singer performs the song without any music in the background or instruments
These stone wedges are called voussoirs.
Voussoirs are wedges, a type of stone often used for making arches and vaults - in this case, voussoirs were used to create arches in the Great Mosque (possibly referring to the Greate Mosque of Mecca, in Saudi Arabia).
Answer:
Teotihuacan.
Explanation:
The Classic period was considered a trade mark of the cities of Mayan culture.
This period took place in 250 AD to 900 AD, and all the achievements of arts were achieved by the Mayan civilizations in this period.
Here's a timeline:
400 AD -- Teotihuacan became the dominant city that had power over Mayan's mountains.
560 AD -- Tikal city was conquered by the union of other city-states.
600 AD -- Teotihuacan stopped being the center of cultural events.
900 AD -- Teotihuacan gets abandoned. The end of Maya Classic period.
Archeologists and other people still know very little about those events and why this period was ruined and over, it all still remains a mystery.
