(CNN) -- A few kilometers from the city center of Manaus, Brazil, is a natural phenomenon called "the meeting of the waters." Here, the Rio Negro and Amazon rivers join, but don't mix -- light and dark waters, flowing side by side for 8-10 kilometers, due to different water temperatures, speed and acid levels. Eventually, the two rivers become one, and the mighty Amazon continues its journey through northern Brazil. It is just one of the countless features that makes Manaus such a unique city. With the Amazon rainforest as its backyard, FIFA and city officials hope it will also be enough to draw in fans from around the world as one of Brazil's 12 host cities for the 2014 World Cup.
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Manaus, right next to Amazon, is one of host cities for the 2014 Brazil World Cup
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A new stadium with sustainable features called Arena da Amazonia in construction
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Most of the work must be completed before the rainy season starts in December
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The 44,000-seater stadium cost $225m and will also host concerts and conferences
@placeholder' local football teams don't draw in a big crowd.