Four Corners: Make a map of four or more entities which share, or almost share, a common point. Examples: Utah/Colorado/Arizona/New Mexico, Namibia/Zambia/Botswana/Zimbabwe (they almost meet), the four suyus of the Incan Empire which all meet at Cuzco, that one proposal to slice Europe up like a pie, Egypt/Hala'ib/Bir Tawil/Sudan, South Pole, Mount Etna (10 communes meet there, one twice), the original 1947 UN partition plan for Palestine that had two points where Israel and Palestine crossed over.