Ever wondered what you would do if a comet was about to strike the earth? Here are the top 20 underground bunkers in the UK that could save your life...

What would you do if a giant comet was hurtling towards Earth threatening the total annihilation of mankind? If your answer is 'hide underground and watch the catastrophe on television', you'll enjoy Sky1's new end-of-the-world comedy drama Apocalypse Slough. The ten-part series, set in the humble Berkshire town, has drawn big-name US actors Rob Lowe (centre) and Will and Grace's Megan Mullally to star alongside a strong British cast. The show's mismatched characters' bid to survive an eight-mile wide Earth-bound comet eventually sees them huddled in an underground bunker as they wait for the impending Armageddon. Such a reaction is not far-fetched, especially among Brits, who for the last 70 years have invested in subterranean shelters where they could survive anything from nuclear war to a zombie apocalypse. In the unlikely event of such a disaster, here are 20 of the nation's bests bunkers to head for. Pictured clockwise from top left: Burlington Bunker, Wiltshire; Air Raid Shelter, Stockport; Hack Green Nuclear Bunker, Cheshire; The Cabinet Rooms, London.

Cavernous retreat: Formed by sandstone mining for the 18th century glass trade, the Redcliffe Caves have remained almost untouched since

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Back-up base: Paddock was constructed in 1939 and was to be used if the government's central London shelter was bombed out

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Highly secure: Each floor could be sealed with huge, air tight blast doors which, combined with an air filtration system, meant that poisonous gasses couldn't breach the bunker

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In need of renovation: Since being abandoned in the 1940s, the bunker has fallen into disrepair and would need some serious restoration work to become useful as an apocalypse hideaway again