Is there any scientific evidence that answers how old is machu picchu?
Answer:
Machu Picchu was most likely built around 1450, as the architectural style and techniques used are the same as have been found in other regions. The technique of building walls without mortar is one of the most significant signs of the time it was constructed, along with the presence of a sacrificial stone that is similar to others found in the region from the same time period.
