secret door to an underground storm shelter/panic room/hid out in the kitchen island! Best secret passage ever! Definitely a dream home feature! (would also be good if someone broke into your house and you had to hide somewhere) Zombie apocalypse.
How to build an earthbag dome house. Can you imagine if this was your playhouse? Or your storage shed? Earthbag houses are so stable, efficient, and cheap to build that relief workers build them in all sorts of areas where people need shelter in a hurry