Why is the plaza de armas in cuzco significant?
1) it was destroyed in the 17th century and later rebuilt.
2) it is known for it's artists' studios and workshops.
3) it is the central square of machu piccu.
4) it is where the spanish proclaimed their conquest of the incan empire.

Plaza de Armas in Cuzco is significant because it is where the Spanish proclaimed their conquest of the Incan empire. The correct option among all the options that are given in the question is the fourth option or option "4". I hope that this is the answer that has actually come to your great help.