This tall tower is called a "maypole"

You can ask your mommy about it, Truman. i know it's called "Maibaum" in Germany. It's very tall and raised every year for May 1st, which is called May Day. It's usually a holiday in Germany to celebrate people who work hard. I think they keep it up at least until the end of May every year -- maybe longer. It's very pretty, isn't it?