I just found out that Drakes Island fortress, in Plymouth Devon, has just gone up for sale with an asking price of £6m. A few explorers have posted some great reports of this beautiful and historic place, sadly I have not been able to visit myself but have sailed around it many times during my time there at university. I guess this now means that i really do have to go, before some rich spoilsport comes and ruins all the fun :)
BBC news link
https://www.bbc.co.uk/news/uk-england-devon-45856719
BBC news link
https://www.bbc.co.uk/news/uk-england-devon-45856719