bunker

Then, just as he did on the first hole, McIlroy wound up with his drive in a fairway bunker on No. 2.

But many are buried deep in underground bunkers.

They were housed in a small nuclear fallout bunker, designed to gather data in the event of an attack.

Some of Mr Everett's remains were first discovered by a member of the public in an abandoned bunker at a nature reserve in Salford in April last year.

Estonia, for example, is introducing a new law that makes it mandatory for all new office and apartment blocks of a certain size to include bunkers or bomb shelters.