They say everything is big in Texas, well compared to Dubai, Texas is a midget. Courtesy of Dubai, we have seen the world's biggest theme park, shopping malls and even indoor artificial ski fields.Now comes the Middle East's largest billboard ad. Weighing in at a whopping 400 meters long and 20 meters high at its highest point, the billboard is promoting one of the cities development projects named 'The lagoons'.Using the more than 2,880 hours of man power, the billboard is positioned in a marketing traffic gold mine on the infamous Sheikh Zayed Road.With up to a quarter of a million motorists passing the billboard each day, it's fair to say the size will grab a few motorists attention along its 200 meter long stretch