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.
Phongnhakebang. lingashaped stalagmite in cave in Phong NhaKe Bang National Park Vietnam Own Genghiskhanviet public domain Caves in Vietnam Phong NhaKe Bang National Park Stalagmites Draperies Flowstones
Page 2023 Free-images.com. All images are Public Domain