Migrant workers like Dipak Ghal and Sabash Chander are responsible for cleaning the 24,000 panes of glass that cover the world's tallest building, the Burj Khalifa in Dubai.
If you think drag racing is extreme, try doing it uphill. And on sand.
Explore Wadi Rum, a stunning expanse of windswept valleys and desert in Jordan that British army officer T.E. Lawrence called "vast, echoing and God-like."
Take a rare, behind-the-scenes tour of the Dubai Mall, the largest shopping center on the planet. With 75 million visitors each year, maintaining this city within a city is no easy task.