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.
Mezek Fortress PD . de Festung Mesek in den Rhodopen bei der Kleinstadt Mesek Bulgarien en Mezek Fortress in the Rhodope Mountains Bulgaria bg own Bin im Garten Mezek Fortress
Page 2023 Free-images.com. All images are Public Domain