I never saw a roundabout while I was there, & I just asked my Wife & she tells me she's only ever seen one in St louis Missouri, a full city block in diametre apparently. Bear in mind she hasn't seen a lot of America either.
The only thing I saw remotely resembling a roundabout was trying to get on or off the interstate!! Had these huge 'loops'....but as you drove around this loop, you also rose in altitude...like a round bridge!
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