How to make:
Cut pomegranate in half and juice with a spinning citrus juicer. SHAKE all ingredients with ice and fine strain into ice-filled glass.
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.