Some luxury bunker companies told Business Insider interest spikes during geopolitical conflicts, including the one with Iran.

Discover how to build an awesome underground house using primitive techniques, a unique shelter for bushcraft enthusiasts that showcases essential survival skills.

Bunker manufacturing company said its seen recent interest from Florida residents wanting to build safe spaces.

And his bunkers are not your tin pot Morrison Shelter type seen in back gardens during World War Two. These are built below ground or as extensions to people’s homes, using reinforced steel and cement ...