Make a schedule for your trip to the museums of Foz do Iguaçu. All entrance tickets grant access to both the current temporary exhibitions and the permanent collection. Online ticket reservations are available in advance.
You get three benefits with the Foz do Iguaçu City Pass - all the major attractions are included in this one pass, making it even easier. The best aspect is that there is no time constraint, so you may schedule your trip anyway you like.