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The special train is a tribute to, expresses solidarity with all those who have lost their lives for the country
We look at 13 pictures of events from around the world
We look at some heart wrenching photographs of the aftermath that followed the attack
Gathered here are all of this year’s winners and honorable mentions
Our theme of the week gives followers a chance to connect with other users through their photographs
The opening ceremony was decidedly simple and low-tech, a reflection of Brazil's tough economic times