From the Daily Mail article:
"…the 'Temples of Damanhur' are not the great legacy of some long-lost civilisation, they are the work of a 57-year-old former insurance broker from northern Italy who, inspired by a childhood vision, began digging into the rock.
The first time the police came it was over alleged tax evasion and still the temples lay undiscovered. But a year later the police swooped on the community demanding: "Show us these temples or we will dynamite the entire hillside."
Stunned by what they had found, the authorities decided to seize the temples on behalf of the government."