stones and cliff sides
A few months
The Inca built stone walls in part of Cuzco so they can please the God. C:
They had to build a Sun Temple
The AZTECS built their cities with stone blocks.
they were planned. the inca ruler, sapa inca, would build these cities, most likely in regard to the new tribes that he conquered.
they used terraced building carved into rocks
The Inca civilization had the largest empire in the Americas prior to European colonization. The most famous cities of the Inca civilization were Cuzco and Machu Picchu. Cuzco was the capital of the Incan empire.
the Inca were really hard working the build the road them selfs
Yes, they did. Roads through the mountains connected all of the major Inca cities.
They had central plaza's
The Incas constructed a system of roads between the major cities of the empire.
they enlarged it by making more households and inca cities
yes, they did
they really did build the bridge
There is a reason why the Spanish wanted to conquer the Inkas as well as the Mayans and Aztecs: Amazingly, beautifully, great cities. Main cities had architecture beyond any civilization at that time. They did not use mortar or other cement-like pavement, instead by placing each rock in a perfect way they were able to build temples and cities that could sustain earthquakes. Designed in the perfect way they brought out the Spaniards' greed in their eyes.
The Inca build Cuzco at 11,000 feet in the mountains of southern Peru.