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The Canadian National Vimy Memorial, near Vimy, Pas-de-Calais département, France, is ceremonially considered Canadian territory. In 1922 the French government donated "freely, and for all time, to the Government of Canada the free use of the land exempt from all taxes". However, it does not enjoy extraterritorial status and is thus subject to French law.
In the past, there has been interest in both Canada and the Turks and Caicos Islands, an overseas UK territory in the Caribbean, for the latter to enter Confederation in some capacity. While no official negotiations are underway, the two have a long-standing relationship and politicians on both sides have actively explored the circumstances under which a political union could be achieved.
Read more about this topic: Provinces And Territories Of Canada