Remember the movie Journey to the Center of the Earth? For those who haven’t watched it yet, three people fall into the volcano and discover that there is another world inside the Earth that is breathtakingly beautiful, but they couldn’t stay there. Similar thing happened in Vietnam, where they discovered a cave, the biggest one in the world, that hides a whole another world inside. It is so big that here is a whole forest inside. A place that is certainly on my bucket list. Here are some pictures that could help you imagine the greatness and beauty of it.