The remains of an ancient ceremonial Inca bathroom, discovered in a sector known as Inkawasi (House of the Inca), at the archaeological site Huanuco Pampa, are pictured in Huanuco, Peru April 5, 2023. Archaeologists work in the remains of an ancient ceremonial Inca bathroom, discovered in a sector known as Inkawasi (House of the Inca), at the archaeological site Huanuco Pampa, in Huanuco, Peru March 20, 2023. The remains of an ancient ceremonial Inca bathroom, discovered in a sector known as Inkawasi (House of the Inca), at the archaeological site Huanuco Pampa, are pictured in Huanuco, Peru April 5, 2023. Archaeologists work in the remains of an ancient ceremonial Inca bathroom, discovered in a sector known as Inkawasi (House of the Inca), at the archaeological site Huanuco Pampa, in Huanuco, Peru March 20, 2023. Peru Culture Ministry/Handout via ReutersThe Huanuco Pampa archaeological site is part of the Qhapaq Nan project, a complex 25,000-kilometer-long road network that linked Ecuador, Colombia, Peru, Bolivia and Argentina.