Free online jigsaw puzzle of the aqueduct bridge in Segovia, Spain. The Roman aqueduct is one of the most maintained ancient structure on the Iberian Peninsula.
Incredible technology - these are about 2000 years old and still being used. I think some aqueducts still transport water and some are used to travel over.
Yes, this is the aqueduct we saw from the bus while in So. Spain. It has been around for a long long time. Indoor plumbing back in the Roman times. This one took a little longer but well worth the time!