We have back-to-back round-a-bouts in Chattanooga (153 / Lake Resort / Access) which have two loops (concentric inner & outer round-a-bouts)... that can be quite confusing for anybody unfamiliar with the local pattern.
Ours is much simpler, with a round-a-bout on either side of a regional highway. One of the difficult parts about it is everybody is already jacked the fuck up (on account of 2 of the 5 input/outputs being extremely steep grade to enter/exit a river-crossing, with speeds averaging 65-70mph ["55mph" posted, oklol).
That wouldn't raise an eyebrow here in the UK, it's very normal for highway junctions to have on/off ramps that end in 2-3 lane roundabouts, one each side of the highway.