Also named the Great Sandy Desert or the Empty Quarter, it is the biggest sand desert in the world and extends 250,000 square miles. It is furthermore, one of the most significant deserts with resources of petroleum and natural gas underneath its sands. The dunes here are at a height that humans can't even walk over them. A visit to the famous desert will result in a lot of Instagram posts for sure. Apart from Arabian hospitality, all types of travellers can have an adventure of a lifetime here. Try out a desert trek at dawn, or trek along with a camel, camp-fire barbecues, and biking and much more. You can also visit the tallest dune in the world, Tel Moreeb. The name means Terrifying Mountain! Above 300 meters in height and having a 50° incline, it is a dream for expert bikers and motorists to ascend to its peak.