|3 fl oz||Suco de Romã|
|2 fl oz||Rutte Dry Gin|
|3⁄4 fl oz||Suco fresco de Abacaxi|
Fruity and easy drinking, yet with complexity from the gin.
Adapted from a drink discovered in 2004 at Mandarin Oriental, New York City, USA. The name is a reference to the bar's location - Columbus Circle, where the world's first one-way rotary system (roundabout) was implemented in 1904.