The indomitable citadels that resisted the Inca power are surrounded by stunning natural scenarios where Chachapoyas culture built their characteristic circular buildings and complexes. The major tourist attraction in Amazonas: Kuelap Fortress is completely accessible for adventurers. It is located at 3000 m.a.s.l., in the Amazonian Andes; and it has an area of 450 hectares, approximately. It is considered one of the greatest archaeological monuments in Peru. The walls are over 20 meters high and the alleys have a funnel shape, all of this makes the walled citadel a mysterious and surprising place.