Some technologies just haven’t changed that much in the last two thousand years. Case in point: stormdrains. The picture below is of a Roman Empire stormdrain situated in the ruins of Conimbriga, in central Portugal.


Conimbriga stormdrain


 The Roman ruins at Conimbriga are a forty-five minute bus ride away from the modern-day city of Coimbra, where this stormdrain picture was taken. 

Coimbra stormdrain