Germany's and Netherlands' dream

The Doomsday Seed Vault on Svalbard has over 21,500 cannabis seeds in it. That means that there are more seeds in there for weed than there are for aspargus, blueberry and raspberry, for example.

Because humans have almost never gone there for 60 years, the Korean DMZ has become a refuge for several endangered species such as Siberian tigers and red crowned cranes.