Among the elements that give Machu Picchu its character, the stone staircases are the quiet engineering story. Cut from the ridge itself and set without mortar, they thread between the temples, terraces and residential blocks — a UNESCO site that still handles the same foot traffic it did five hundred years ago.

They had two jobs. Practically, they moved water-bearers, farmers and priests between levels of the city. Ritually, climbing was part of the architecture — the ascent itself drew the walker closer to the hanan pacha, the upper world of Inca cosmology.

Walk them today and the sequence still reads: fountains fed by hidden channels along one line, carved outcrops along another, lookouts that open onto the Urubamba gorge far below. The gradient is steep and the stones polished smooth in places; grippy shoes help.

Peruways runs guided climbs with local guides who read the stonework in context — the quarries, the solstice alignments, the fit of blocks that have held through five centuries of earthquakes.