Bunker architecture is often better by accident than the deliberate attempts to create an aesthetic based on massive elements, through brutalism. Paul Virilio famously published a book of some of the more extreme versions of the 12,000 bunkers that formed the Atlantic Wall in WWII and Albania has an incredible 700,000 bunkers in a population of 3M, created by its mad leader, Enver Hoxha. Perhaps the strangest of all are the concealed bunkers that litter the Swiss countryside either as fake chalets or as mountains that literally open up to reveal jet fighters.