Snowglobe
From Tardis Wiki, the free Doctor Who reference
Snowglobes were huge domes across the Earth which contained vast sections of the Antarctic and Arctic in order to preserve them from global warming. They were created by the Earth government and each was identified by number. Due to their maintenance being expensive, most became visitor attractions, leaving only three snowglobes to be used for scientific research. (NSA: Snowglobe 7).
List of Snowglobes
