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What are London's WWII deep-level air-raid shelters used for?

16 May 2014 Last updated at 03:47 BST

A disused Second World War bunker large enough to accommodate up to 8,000 people is being let by Transport for London.

The deep-level air-raid shelter lies 100 feet below ground in south London, and is one of eight built beneath the capital during the war.

Newsnight's Stephen Smith arranged a viewing.

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