the aqueduto da usseira in Óbidos, portugal is a remarkable feat of engineering that has stood the test of time.

engineering discoveries remarkable kilometers catherine beautiful undefined woodland sunlight waterway aqueduto portugal aqueduct problems scarcity usseira address crucial springs located nature forest autumn garden flower jungle bridge orders walled played supply green plant ruins river bidos stood built queen water faced clean tree leaf rock park feat test time 1571 1575 city role age