An ice palace deep inside the Vatnajökull ice cap in Iceland. Vatnajökull is the largest ice cap in Europe, around 743 cubic miles, covering about of Iceland, and constantly changing its formation due to the melting of the glacier.
A beautiful cave sustained by crystals - Cave of the Crystals (also called Giant Crystal Cave) is a cave connected to the Naica Mine 300 meters below the surface in Naica, Mexico. The main chamber contains some of the largest selenite crystals ever found.
It is what is UNDER Gunung Mulu National Park in Borneo that is truly amazing: Deer Cave is home to more than three million bats and is believed to be the largest cave passage in the world miles have been mapped out so far!