Final answer:
Machu Picchu reveals the Inca's capabilities for complex construction, their religious devotion, and management of harsh environments. The lack of fortifications and the absence of a writing system at the site implicate other facets of their society and culture.
Step-by-step explanation:
The architecture of Machu Picchu provides tremendous cultural information about the Inca. It shows that they were capable of large-scale building projects, which is evident from the grandeur and complexity of their constructions. The city's sophisticated design,
Executed without the use of mortar and involving polished stones that fit together perfectly, indicates not only architectural excellence but also a highly organized society with skilled laborers.The site's location and design suggest that it had religious and ceremonial significance, and likely served as a retreat for kings.
Given that the city was constructed in such a remote and inaccessible location, heavily reliant on terraced agriculture, it underscores the Inca's mastery over their harsh environment. The absence of fortifications negates the assumption that Incan society was extremely violent and in constant need of defences.
As for writing, while no direct evidence is present at Machu Picchu to suggest its use, this does not preclude the possibility, as other means of communication and record-keeping such as quipus were used by the Inca.