160 cars can drive side by side on the Monumental Axis in Brazil, the world's widest road.
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Passengers on the Beijing subway can pay with plastic bottles.
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The "Cobra Effect" is where a solution for a problem actually makes the problem worse.
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Caffeine boosts memory.
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You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
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Macklemore and his hit “Thrift Shop” was the first time since 1994 that a song reached number 1 on the Hot 100 chart without the support of a major record label.
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