I'm probably more than anything a history/geography buff-- I find the subjects to be so linked that I don't know what they are thought as separate subjects. Languages come close third-- and I do mean natural languages.
Currently I'm "reading" (as in: the book is glaring at me accusingly from relatively close to the top of the huge pile beside the bed) Sheba: Through the Desert in Search of the Legendary Queen by Nicholas Clapp. It looks promising, I really liked his previous book, Road to Ubar reads like an Indiana Jones story-- except it's true (and no Nazis). First finding references to an old legend of Arabian peninsula (the lost city of Ubar), noticing an error in an ancient Greek geography text that gives a hint to the location of the place, and using Jet Propulsion Laboratory satellite images to survey the area, Clapp heads off to the rugged incense mountains of Yemen, and one of the most forbidding places on Earth, the Rub al Khali desert ("The Empty Quarter")-- and finds the fabled city of Ubar. Well, "finds" with as good certainty as you can without finding written evidence.
One of the best books I've read recently is Jared Diamond's Guns, Germs, and Steel: The Fates of Human Societies that is an answer to a very short question, posed to Diamond by a friend of his, a Papua-New Guinea native: Why do you have all this stuff?, or rephrased as Why did it happen so that the Western culture conquered the world? Jared Diamond's answer (which is a fascinating combination of geography, biology, and blind luck) may not be the full or the final answer, but it's a very convincing answer.
Because of my history twist, I like to unwind by building kingdoms and empires. Never could stand the interface of Civilization, but Age of Empires is cool, currently I'm building away at the expansion pack. (Besides, if you've ever played the boardgame version of Civilization, you know that the computer version sucks raw eggs.) At the university I liked to play conquer (note: conquer, not the PC game of Command and Conquer).
conquer was a cool multiuser empire-building game, somewhat similar to "empire"-- but most people have probably heard of neither.