Roman aqueduct
Rome's first aqueduct was built in 312 BC, and supplied a water fountain at the city's cattle market. By the 3rd century AD, the city had eleven aqueducts, sustaining a population of over a million in a water-extravagant economy; most of the water supplied the city's many public baths. Cities and towns throughout the Roman Empire emulated this model, and funded aqueducts as objects of public interest and civic pride, "an expensive yet necessary luxury to which all could, and did, aspire".
Minden Aqueduct
The first canal bridge over the river Weser was built in 1914. It is a 370-metre-long concrete construction. At the end of World War II it was destroyed by the retreating "Wehrmacht" in 1945. In 1949, the renovated bridge was re-opened.