The Place
Built in the 1450s as a royal estate for the Inca emperor Pachacuti, Machu Picchu was abandoned roughly a century later during the Spanish conquest — and, crucially, never found by the conquistadors. That's the whole reason it survived intact enough to still look the way it does: no colonial church built over the temple, no stones repurposed for a Spanish plaza. It sat quietly on its ridge for nearly 400 years until it was brought to international attention in 1911.
Every tier of this trip includes a full entry with a licensed guide — this isn't a place worth rushing through without context, since so much of what's visible (the terracing, the water channels, the temple alignments to solstice sunrises) only makes sense once someone explains what you're looking at.
The Signature tier's train — the Belmond Hiram Bingham — is worth calling out on its own. It's a 1920s-style Pullman train with a live band in the bar car and a multi-course meal served on the way in, and by most accounts it's memorable enough to be a genuine part of the Machu Picchu experience rather than just transportation to it.