The bunker has 2ft (60cm) thick walls and steel doors
A former nuclear bunker in Hampshire which could house up to 30 people is to be auctioned for more than £240,000.
The bunker, near Twyford village, was originally built in 1905 as a covered reservoir before being transformed into a nuclear bunker during the Cold War.
Auctioneers Clive Emson admit they have no idea who would want a property which has parking for 13 cars and the ability to withstand a nuclear strike.
The bunker has been used by computer security companies since 1997.
The auction is due to take place on 16 December.