This is the post I was trying to put together yesterday but couldn't because my computer decided otherwise...
We watched the program Amazing Spaces on Wednesday and I was fascinated by the Exbury Egg.
This is from the site of the artist who commissioned it:
The Exbury Egg will be a temporary, energy efficient self-sustaining work space for artist Stephen Turner in the estuary of the River Beaulieu. It is a place to stay and a laboratory for studying the life of a tidal creek, a collecting and collating centre with integral storage & display areas. It will take on the patina of 730 daily tides below the water line, and 365 days of weathering by wind, rain and bleaching by the sun above.
The egg is surprisingly spacious inside and Stephen Turner seems to be having a jolly good time: