In Photos: Natural World Wonders To Soothe Your Soul
Horseshoe Falls, Niagara Falls, Canada-US
Niagara Falls was formed as the Niagara river plunged over an escarpment on its way to the Atlantic Ocean. In a process that continues today, the river eroded layers of soft rock that sat below a harder dolomite caprock. As the soft layers eroded, great chunks of the caprock gave way, leaving a vertical cliff face.
Photo: Jin Kim/Imagelibrary India Pvt