The proposal of the Dolt in Office to buy Greenland might fit here. The price of the piece of real estate should be estimated though.
The 2,850,000 cubic kilometers of frozen mineral water translates to about 3,8*10^15€, not counting the expense invested in freezing the stuff. This may be estimated by the energy requirement to freeze 20 degree regular water. Then there are the fishes the value of which could be estimated by multiplying a normal 3* restaurant meal by 8, as one fish is split to so many pieces. I don't know what a valid price for a live polar bear is, but this is a minor expense compared to fish. Then there are the few rivers that can be harnessed for energy, so their lifetimes entire potential energy should also be compensated.
Well you get the idea.