A labourer stands on a portable lift as he injects a type of grout into gaps and fissures in the stones...
A labourer stands on a portable lift as he injects a type of grout into the gaps and fissures in the stones of the Western Wall, Judaism's holiest prayer site, as part of the Israel Antiquities Authority treatment of the ancient stones, in Jerusalem's Old City February 23, 2021. REUTERS/Ronen Zvulun