
The Ferreres Aqueduct near Tarragona, Spain was built by the Romans in 20BC and is still standing.

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forum: Architecture, Real-Estate & Buildings
I have to say in my travels in the USA I have never seen any structure like this before. I would not be surprised if there are some structures, perhaps hundreds if not thousands like that in the USA, it is just that I have never seen any. They are amazing looking bridges... are they called bridges??