With three years to go until the 2020 World Expo will open its doors to an expected 25 million visitors, construction is well underway in Dubai.Aerial footage released on August 7 shows the site, where 5,000 construction workers are laboring in intense heat. At its peak, a whopping 37,000 people are expected to be working on the construction project.The region has seen a heatwave in recent weeks, with temperatures topping 50 degrees Celsius (120 Fahrenheit). Credit: Dubai Media Office via Storyful
