18 Trips to Revisit World War I

This year marks the 100th anniversary of World War I, the war to end all wars, when a hastily crafted armistice was signed in France on “the eleventh hour of the eleventh day of the eleventh month.” The end of the war dominated the world's attention, but other events also would leave their mark on history. Here are 18 centennials worth noting, from the somber to the silly.