Images of the week: Brussels, Universal City, Cuzco // Images of the week: Brussels, Universal City, Cuzco (© 2012 RELAXNEWS)

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Images of the week: Brussels, Universal City, Cuzco

A hummingbird flies arround a flower during the Birding Rally Challenge at "Aguas Calientes" near the Machu Picchu sanctuary in Cuzco on December 5, 2012. The Birding Rally Challenge is a competition, involving teams of well known birders, where participants must cover the greatest number of habitats within a relative small geographical area and in a limited amount of time, allowing them to appreciate the biodiversity of Peru.