What is your favorite part of history to read/learn about?

For you WWII buffs John Toland's Battle: the Story of the Bulge is a riveting account of the last great battle of WWII in Europe. Toland chronicles well the mistakes made on both sides.

And :plus-un2: to Krodwhodat for starting this thread. I am very interested in any sort of military history trivia. Like how a Norwegian fort sunk a modern German cruiser in 1940.

http://en.wikipedia.org/wiki/German_cruiser_Blücher