Kuelap is a fortified citadel located in the mountains that watches from the above. It is an ancient legacy of the Chachapoyas culture that developed from 500AD till 1570AD. Its impressive walls are up to 20 m high and reveal and advanced engineering and architecture technique. Due to its strategical location, Kuelap was built for defensive purposes against other ethnical groups, you will marveled at admiring its great lithic wall which has three entrances that become narrower until it allows the passage of one person.