Ancient aqueducts remain some of the most impressive engineering achievements ever built because they solved enormous logistical problems without modern machinery or technology. Civilizations like the ...

Roman concrete is often hailed as a major engineering feat. It has allowed the Empire’s monumental structures to remain standing for two thousand years. Many of the buildings, bridges, and aqueducts ...

Researchers investigated Pompeii's water system, including the "water castle" pictured here, which served as the water distribution structure for Pompeii's aqueduct. Cees Passchier Pompeii’s public ...

Decades ago, children would play in the caves and tunnels under the hill of Posillipo in Italy. They would run and duck through the subterranean world, weaving through miles of underground tunnels.