A dust storm or sandstorm is a meteorological phenomenon common in arid and semi-arid regions. Dust storms arise when a gust front blows loose sand and dust from a dry surface. Particles are transported by saltation and suspension, causing soil erosion from one place and deposition in another. The Sahara and drylands around the Arabian peninsula are the main source of airborne dust, with some contributions from Iran, Pakistan and India into the Arabian Sea, and China.
We're aware of the Grand Canyon in Arizona, but there's another lesser-known sight — the Havasu Falls — that you shouldn't miss out on. The red rocks and vibrant blue waters make a really stunning contrast. Sources: Shutterstock and Corbis Images