£17,000 - that's the cost of a bottle of 2009 red burgundy in one of the most valuable wine cellars in the world.
It's also possibly one of the biggest cellars, containing millions of bottles from all over the world.
Kerry Swain went for an exclusive look around and speaks to Keith Procter of Berry Bros & Rudd, and Alan Poole, site manager.
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Tuesday's weather for the west of the region
Tuesday's weather for the east of the region
Causes are thought to be climate change, fisheries, disease, and pollution.