The correct answer is Great Zimbabwe
These buildings were sometimes even over 5 meters long and were made out of bricks that were stacked on top of each other. The constructions are huge and there are many anthropologists who claim that these constructions are second in their greatness only to the great pyramids in Egypt because of how massive and unique they are.
The ancient kingdom of Kalinga was located on the northeastern coast of India. It was begun by the Gangas dynasty in the 11th century. That dynasty built some famous temples such as the temple to the sun god at Konark. In 1324 the dynasty collapsed due to the incursion of the sultan of Delhi into their realm.
Cars.
Radio.
Television.
More advanced cars
Mobile phones