Final answer:
The Inca Empire had suspension bridges made of rope, stone, and wood.
Step-by-step explanation:
The empire in question is the Inca Empire.
During the time of the Conquistadors, the Inca Empire was discovered to have suspension bridges made of rope, stone, and wood. These bridges were an important part of the empire's vast road network, which was necessary to navigate the difficult and varied landscape of the empire.