Jordan, Petra, Iron and manganese oxides as well as hydroxide minerals within the Umm Ishrin sandstone create these colorful patterns in the rock walls of Petra in the Petra Archeological Park is a Jo...

Jordan, Petra, Iron and manganese oxides as well as hydroxide minerals within the Umm Ishrin sandstone create these colorful patterns in this tomb cut into the rock walls of Petra in the Petra Archeol...

Jordan, Petra, Iron and manganese oxides as well as hydroxide minerals within the Umm Ishrin sandstone create these colorful patterns in the rock walls of Petra in the Petra Archeological Park is a Jo...

Jordan, Petra, Iron and manganese oxides as well as hydroxide minerals within the Umm Ishrin sandstone create these colorful patterns in the rock walls of Petra in the Petra Archeological Park is a Jo...

Jordan, Petra, Iron and manganese oxides as well as hydroxide minerals within the Umm Ishrin sandstone create these colorful patterns in the rock walls of Petra in the Petra Archeological Park is a Jo...

Ireland, County Waterford, Tankardstown, Abandoned copper mine with the engine house ruin.

China, Henan Province, Luoyang, Chrysanthemum stone, Longmen Grottoes and Caves.

USA, New Mexico, Rio Grande River, View along river near Taos showing deeply eroded banks and bed.

Namibia, Namib Desert, Rossing Village, Open cast uranium mine.

Namibia, Namib Desert, Rossing Uranium open cast mine in the Namib Desert, Vast expanse of terraced landscape and dry, arid conditions.

THE CHAMPAGNE POOL OF WAI O TAPU THERMAL WONDERLAND.THE SPRING IS 65 METRES IN DIAMETER AND 62 METRES DEEP.THE POOL WAS FORMED 700 YEARS AGO BY A HYDROTHERMAL ERUPTION.VARIOUS MINERALS ARE DEPOSITED...

tHE CHAMPAGNE POOL OF WAI O TAPU THERMAL WONDERLAND.THE SPRING IS 65 METRES IN DIAMETER AND 62 METRES DEEP.THE POOL WAS FORMED 700 YEARS AGO BY A HYDROTHERMAL ERUPTION.VARIOUS MINERALS ARE DEPOSITED A...