This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Burgruine Tannenberg Bergfried. en Ruins of Tannenberg Castle Odenwald Mountains Hesse Germany View of the Bergfried main tower from the south The tower was reconstructed up to height of meters On the right side great stone ball is visible It has diametre of cm and was thrown into the castle by trebuchet during the famous siege