Hidden in the rugged hills of Northeast India, this National Geological Monument reveals remnants of an ancient plate boundary, where fragments of the ocean floor were uplifted during tectonic collisions. The site showcases striking ophiolitic rocks - deep-sea magmatic and sedimentary formations dating back to the Mesozoic and Cenozoic eras. #GeoHeritage #AnyGuess #Geology #EarthScience #GeoTourism #IndiaNature #NationalGeologicalMonument | Geological Survey of India

Kansas’ chalk towers are a stunning monument to the passing of time – since the Sunflower State joined the Union on this day in 1861, they’ve been slowly eroding back into the prairie. Have you seen these wonders in person? See more on Aerial America: http://bitly.com/AerialKansas | Smithsonian Channel