The least humid vacation spots are typically found in high-altitude mountain regions or "Rain Shadow" deserts. Antarctica is technically the driest place on Earth, but for more traditional vacations, the Atacama Desert in Chile is world-renowned for having almost zero humidity, making it a premier spot for stargazing. In the United States, Las Vegas, Nevada, and Palm Springs, California, offer a "dry heat" that many travelers prefer over tropical humidity. In Europe, the Spanish Meseta (Madrid) and parts of the Greek Islands during the summer can have very low relative humidity. For a coastal experience with low humidity, Baja California in Mexico or the Skeleton Coast in Namibia are excellent choices. These destinations are ideal for travelers who struggle with respiratory issues or simply dislike the "sticky" feeling of tropical air, though they require significant attention to hydration and skin care because the dry air can dehydrate the body much faster than you might realize.