In the last 50 years, many natural monuments have undergone drastic transformations or have disappeared. The iconic Darwin's Arch in the Galapagos Islands has completely sunk into the sea.
The Dead Sea, nestled between Israel, the West Bank and Jordan, is famous for its high salinity. Kaimu Beach, Hawaii, is about to disappear due to lava flows. Jeffery Pine, the most photographed tree in the world, succumbed to the force of the wind in the U.S.