Underworld is available for the common people

There are many interesting place in the world which can snatch your breathe in immediate effort. Nature has itself made some outstanding sights which can be the best fir anyone who can love to be astonished. But the above link shows you some outstanding human effort which helps to make an underworld city. On the earth surface, there is only a hole which is the entrance of the city. The pictures of the city are too beautiful that you must go to Australia to experience them in reality. The concept of the planning of the city is very much unique.