Today, I was looking up sites in Johnston County, North Carolina, because I made two Wikimedia commons categories for towns within that county, and I wanted to see how many more images I could add to those categories, or at least somewhere else. What does that have to do with roundabouts, you ask? Well one of those sites is the Bentonville Battlefield and the nearby Harper House, and the nearest major highway to that is US 701. That site is north of Newton Grove, North Carolina, which has an otherwise six-way intersection with US 701, US 13, and NC 50 and 55, all of which are obstructed by a traffic circle/roundabout.
I don't know when that was built, but if there's any example of one that shouldn't be torn down, it's probably that one.