During construction work in a city of central France, archaeologists uncovered a tunnel opening and found a system of ancient Roman passageways. Photos show what remains of the underground structures.

Covered trenches and tunnels are also less disruptive to life ... Pressurized pipe (inverted siphon) When faced with a deep valley, Roman engineers should use pressurized pipes that are inverted ...

Sometimes they would dig down to the water table and build an underground tunnel to begin the aqueduct. Aicher and Roman bath scholar Garrett Fagan explore aqueduct tunnels, a major feature of ...

According to the Yale University Art Gallery, "the painted decoration reflects Roman iconography of victory ... including the scutum — in a tunnel under a fortification tower.

Guests will also get to get an up-close view of the newly remodeled floor of the Roman Colosseum which was removed by archaeologists in the 19th Century, revealing the huge maze of tunnels where ...

connected by arched tunnels. Dig leader Dr Chris Smart, from the University of Exeter, said the mine was an "unexpected bonus". Archaeologists have also found a Roman road among other remains ...