Though the Incas left no written records of their great civilization, the archaeological remains and accounts of Spanish conquistadors and priests paint a picture of a well-ordered, vast empire. In the mountains of Peru and Ecuador, traces of Inca culture remain today in the road system that winds through the Andes, where people practice a religion that mixes the Catholicism of the Spanish conquerors with the animism of the Inca. Living in small homes and storehouses that date back to Inca times, these people have been celebrating traditional festivals and market days for more than 800 years.