By JNi.Media
If a letter arrived with a broken bulla, it meant it had been opened.
The Beit Guvrin-Maresha caves located near the city of Kiryat Gat are a network of man-made caves excavated underground over 2,000 years ago. It was declared a World Heritage Site by the UNESCO World Heritage Committee on 22 June 2014. There are some 480 caves in the Beit Guvrin National Park.
By Aryeh Savir, Tazpit News Agency
The Beit Guvrin Caves and Maresha are the Eighth UNESCO Heritage Site in Israel