Mazor Mausoleum in Wikipedia

The Mazor Mausoleum (Hebrew: מאוזוליאום מזור‎) is one of the most impressive and best preserved Roman buildings in Israel, located in El'ad. The Mausoleum, which is the only Roman era building in Israel to still stand from its foundations to its roof, was built for an important Roman man and his wife in the 3rd century CE. Their identities remain a mystery but one can still see the remnants of two sarcophagi in the mausoleum. Muslim Period - In the Late Antiquity, the Muslims added a prayer niche in the southern wall, indicating the direction of Mecca, and the building became an Islamic holy place called Makam Nebe Yihya. Due to its sacredness, the building was preserved through the ages.[1] It functioned as a mosque until the depopulation of the Palestinian village Al-Muzayri'a in 1948.