I hope this helps you and answers your question correctly. i believe the answer is the Dark Age.
Answer:
one would be the Coronavirus
Explanation:
I would maybe say electing donald trump but that would not be right. so I would say maybe the cold war because even thought they won they did spend alot of money fro pretty much nothing. hope this helps
The Answer: Machu Picchu
Reason:
Out of all of the ruins provided, Only the ruins of Machu Picchu was constructed by the Inca Empire.
The ruins of the Olmec's were created by the Olmec's
The ruins of Chichen Itza were created by the Maya people
And the ruins of Tenochtitlan were created by the Aztec people
