Must-SeeMachu Picchu
The Inca citadel on a cloud-forest ridge, among the world's great sights. Timed tickets are limited.

Machu Picchu, Arequipa and Lake Titicaca.
Must-SeeThe Inca citadel on a cloud-forest ridge, among the world's great sights. Timed tickets are limited.
Must-SeeThe old Inca capital, with colonial churches on Inca walls, Sacsayhuamán, and the terraces of Ollantaytambo and Pisac.
Must-SeeFour days on stone paths, by cloud-forest ruins, ending at the Sun Gate. Permits sell out months ahead.
Must-SeeThe world's highest navigable lake, with the floating reed islands of the Uros and Taquile's weavers.
Worth a DetourA white-stone city under a volcano, near one of the world's deepest canyons and its soaring condors.
Worth a DetourMineral-striped slopes above 16,000 feet, a hard day trip from Cusco.
Worth a DetourMachu Picchu's sister, far larger and almost empty, reached only by a multi-day trek.
Grey pins: guides still being written.