Housesteads fort was one of many along Hadrian’s wall, constructed about 1800 years ago.
The Romans built to last:
Large parts of Hadrian's Wall are still standing
Underfloor heating system in the commander's house.
Ventilation in the granary.
Fancy latrines.
All watched over by sheep.
Remarkably, the Romans also thought to install places to charge electric vehicles.
David George Haskell 