If Machu Picchu is in your future travel plans, be sure to purchase your tickets ahead of time or you may be turned away. The country has a daily limit of 2,500 people. Many tourists are showing up without tickets ane being turned away. That would surely throw cold water on your trip!
Machu Picchu Sold Out? - FoxNews.com

You can purchase your tickets online via the following website:
MINISTERIO DE CULTURA - BOLETAJE VIRTUAL

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