Biosphere 2, that lovable Earth environment within Earth environment is for sale. Bioshphere 2 is located in Oracle, Arizona. How much? Well they don’t seem to be saying. But it cost the current developer 200 million dollars to get it to where it is now so, uh, you will need a few million.
If you don’t recall, the whole idea in the Biosphere was to encapulate humans in a earth like bubble and see if the could manage the production of food, water and oxygen like one might do on mars or other inhospitable planet. That didn’t work out too well and they had to get help from “the outside”. Some saw that as a utter and complete failure, some saw it as a learning experience. I agree with the former. They did this 3 times.
I would also like to note that it’s annoying that their website resized the browser to full screen for no apparent reason.