I'm 99% sure that was not the US Embassy. I lived in Prague for 4 months and went there twice. The embassy does not have a view of the Charles Bridge as the bridge is almost directly east of the embassy, lengthwise, and other buildings block the view. The camera angle they used would have you believe that the embassy was right on the river either north or south of the bridge. You can walk to Charles Bridge in 5 minutes from the embassy. I would like to know what building they used. Granted, the building they used looked a lot nicer than the actual embassy. I never heard of the other town they mentioned. I guess I'll look it up.