Comment by zeristor

There’s Scott’s Grotto in Ware, one of the largest, close to London in Hertfordshire.

https://en.wikipedia.org/wiki/Scott%27s_Grotto

The V&A has a huge Four-Poster bed named The Great Bed of Ware, that seems to be a rare survivor.

https://en.wikipedia.org/wiki/Great_Bed_of_Ware

Large enough for four couples apparently, one assumes that was down to cold winters.