The largest man-made mound in Europe, mysterious Silbury Hill compares in height and volume to the roughly contemporary Egyptian pyramids. Probably completed in around 2400 BC, it apparently contains no burial. Though clearly important in itself, its purpose and significance remain unknown.
In my old country was nearby my city the "Five (man made) mounds", not this big, but maybe the volume (in the all five) of the earth is close. And also not known the reason why and when those built.
1
Single RAW Frame shot Hand-Held. Uncropped.