Machu Picchu is an extraordinary ancient stone city along the Inca Trail in Peru and forms one of the most famous historical sites in the world. The site is big and there's plenty to explore make sure you get the full view by climbing to Huayna Picchu. Some of Machu Picchu's most impressive structures include the semi-circular Temple of the Sun, the Temple of the Three Windows, the mausoleum and the upper cemetery. There are various trails around the site which are good hiking if you haven't arrived via the Inca Trail.
Chan Chan is an impressive site in Peru and the world's largest adobe city as well as the largest pre-Colombian city in the Americas. As the capital of the ancient Chimu civilisation, Chan Chan was developed in around 1300 AD and would have reached its peak in the 15th century, after which the Chimu were overtaken by the Incas and the city was abandoned. The Chimu were extremely sophisticated builders and engineers.