Walking into Fingal's Cave is like walking into the heart of the Earth. Here among the towering basalt columns, the visitor stands inside a lava flow. Magma that swelled up from deep in the Earth ...

There are about 40,000 of these columns made of a really hard rock called Basalt, all fitting together like an enormous puzzle. For a long time, no one could explain how they got here, so stories ...

A dramatic volcanic beach with towering basalt columns, sea caves, and crashing waves. One of the most famous black sand beaches in the world. This Hawaiian gem is known for its jet-black sand ...