Is there a word in American English that comes anywhere close to what British English circus encapsulates, that is,
Chiefly British An open circular place where several streets intersect. (AHDEL)
Brit. An open place, usually circular, in a town, where several streets converge. (Collins English Dictiinary)
Brit. an open circle or plaza where several streets converge. (Random House Kennerman Webster's English Dictionary)
British A usually circular area at an intersection of streets. (M-W)
Both square and plaza sort of approximate what I'm looking for. Neither appear to cover the circular aspect of the area, though...
An open place or area formed at the meeting of two or more streets.
A public square in a city or town.