Machaerus

Machaerus was a Hasmonean hilltop palace and desert fortress, now in ruins, located in the village of Mukawir in modern-day Jordan, 25 km southeast of the mouth of the Jordan River on the eastern side of the Dead Sea.

Machaerus was built by Hasmonean king Alexander Jannaeus. Destroyed later by Roman general Gabinius in 57 BCE during conflicts with Aristobulus II, it was subsequently rebuilt and expanded by Herod, who envisioned it as a potential refuge. Herod constructed a palace, cisterns, a mikveh, a triclinium, and a peristyle within the fortress. After the fall of Jerusalem during the First Jewish–Roman War, the fortress became a magnet for resistance against Roman rule. Following a siege by Legio X Fretensis under Bassus in 71 CE, the Jewish defenders eventually surrendered after Eleazar, a key leader, was captured. However, the Romans reneged on their agreement regarding the non-Jewish inhabitants, massacring the men and enslaving the women and children.

Source: Wikipedia