Petra was not just a beautiful city carved into rock: it also had a sophisticated water system in the middle of the Jordanian desert

Researchers found a 116-meter pressurized lead pipe in Petra’s Ain Braq aqueduct, along with nine water conduits, a sealed reservoir, cisterns, and basins.

The discovery shows Petra relied on a multi-phase hydraulic network that later added terracotta channels to an earlier lead system.

The finding revises how the desert capital was supplied with water and reveals sophisticated Nabataean engineering.

It also suggests the Nabataeans used technical and political control over scarce water as a key part of power in Petra.