5. Salar de Uyuni (Daniel Campos Province, Bolivia)
If you want to find out what being an angel and walking on the clouds feels like, visit Bolivia. There is Salar de Uyuni, the largest salt flat on the planet. The area covers more than 4,000 square miles. Underneath the flat there is briny water. In the wintertime, the water creates a wonderful mirror. It reflects the sky and makes you believe as if you were stepping on the sky.