Urederra
Mostly harmless
Left said:La Segrada Familia in Barcelona is amazing, along with the rest of Gaudi's work, but I think thats the only piece of his that could be counted in the "Most Impressive Buildings List"
La Pedrera is also mind-bending though.
You have beaten me on that, so I'll choose another one.
I saw this aqueduct when I was 6 yo. and impressed me.

Like le Pont du Gard, made by the romans like 2000 years ago and still can deliver water to the City.
Romans were so clever that they made the arcs large enough so trucks and busses would be able to go through 2000 years later

Since I couldn't find a pic that covers the whole aqueduct I post two views of it.
