The 1859 military standoff between the United States and Canadian territories over a single pig; the Panamanian rain forest that splits the transcontinental highway; foods that are illegal in the US; and how to swim all the way across North America.

The 1859 Pig War between the United States and what is today Canada began over the killing of a single pig.
The Darién Gap in southern Panama is the reason you cannot drive from Alaska to Argentina.

Kinder surprises, haggis, and blackcurrants have all at one time or another been illegal in the United States.
Thanks to a strange creek in Wyoming, it is theoretically possible to swim all the way across America, from the Atlantic Ocean to the Pacific.
For more strange facts, strange places, and strange people of Canada, the United States, Mexico, and the rest of the countries of North America, Central America, and the Caribbean, begin here: