In the ancient Yererouk Basilica in Armenia, near the border with Turkey, young engineers are using 3D digital technology to scan every part of the building. The aim is to recreate the church on a screen, in full-colour and in three dimensions. This is the digital preservation initiative, created by TUMO, the Center for Creative Technologies, based in Armenia’s capital Yerevan. It is training young Armenians to use new technology and also to connect them to their their 2000-year-old Armenian Christian heritage. In 2023, the country lost control of numerous important religious sites, when the province of Nagorno-Karabakh was taken over by neighbouring Muslim Azerbaijan. The mountainous enclave, known as Artsakh to Armenians, has long been a disputed territory between the two countries. Despite the new peace agreement signed recently, the province is still closed to Armenians. International observers using satellite technology say dozens of important Christian sites have been damaged or destroyed. Julia Paul travels to Armenia to find out how drones and lasers are helping young Armenians to connect to and preserve their ancient Christian heritage.