Lemptegy vulcano
The Lemptegy vulcano has been dig out since 1944. The light material that surrounds the dome seems to be ideal building material since it is so light and very well isolating. It is mainly used in road building.
When you don't see the puzzle, please check whether your device can handle html5 or java. Read here why the puzzles look different and which problems there can be
When you don't see the puzzle, please check whether your device can handle html5 or java. Read here why the puzzles look different and which problems there can be