Starting in July, if you want to see Machu Picchu in Peru, you're going to have to see it during either a morning or afternoon tour.
Up to now, visitors were allowed to spend an entire day exploring the famed Incan citadel.
But officials worried about the effects of a constant stream of tourists have imposed the new restrictions as a means of conserving the site and its one-of-a-kind architecture.
Under the new rules, around 3,600 people will be let in from 6am to noon each day. Then, about 2,700 afternoon visitors will be allowed to take a look around after the morning group leaves.
Additionally, each and every one of those people will need to be on a tour led by a licensed guide.