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 ...

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.

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.

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.

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.

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.

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.

The hypocaust, an ancient system of central heating that circulated hot air beneath the floors of the house, signals a level of luxury atypical for rural estates in Roman Gaul.

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.