In a meeting during World War I, Germany's Wilhelm II and the Netherlands' Queen Wilhelmina had a historic battle of wits: "Our guardsmen," Wilhelm boasted, "are seven feet tall." "But when we open our dikes," the queen replied, "the waters are ten feet deep."

[In 1945, Wilhelmina spent a night in the Lincoln bedroom (at the White House). The following morning, Wilhelmina claimed to have seen a ghost: Abraham Lincoln.]