Archaeologists work on the remains of a Hittite palace and its luxurious ceramics and glassware, which were discovered at the Usakli Hoyuk excavation site, near Yozgat on September 21, 2021. The discovery of a 3,500-year-old paving stone, considered as the "ancestor" of Mediterranean mosaics and resting in the remains of a lost city in central Turkey, sharpens knowledge of the daily life of the still mysterious Hittites of the Bronze Age. Adem ALTAN / AFP.