Ken Jennings is a 74-time champion on the quiz show Jeopardy! and the author of the New York Times bestseller Maphead: Charting the Wide, Weird World of Geography Wonks. He writes a weekly column on geographic oddities for Conde Nast Traveler.

Join Ken every week as he explores a world of interesting geography facts and trivia on Ken Jennings’ Questions of the Week! New questions are posted every Sunday.

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This gulf shares it’s name with a West African country whose capital is Conakry. The location where the Prime Meridian and Equator cross, about 550 miles south of the coast of Ghana, is nicknamed “Null Island,” and there’s nothing there but a weather buoy.