I did believe you, Peter - that's why I did some research and found those pictures. Apparently there's one in Chelmsford too.
I got this from Wikipedia:
The town of Swindon in Wiltshire, England, is known for its "Magic Roundabout". This roundabout is at an intersection of five roads and consists of a two-way road around the central island with five mini-roundabouts where it meets the incoming roads. Traffic may proceed around the main roundabout either clockwise via the outer lanes, or anti-clockwise using the inner lanes next to the central island. At each mini-roundabout the usual clockwise flow applies.
Similar systems are found in various places in England, most famously the Moor End roundabout in Hemel Hempstead (Hertfordshire), which has six intersections; but also one in High Wycombe (Buckinghamshire) and the Denham Roundabout in Denham (Buckinghamshire), the Greenstead Roundabout in Colchester (Essex) and the Sadler's Farm Roundabout in Benfleet (Essex); "The Egg" in Tamworth (Staffordshire); and the Hatton Cross Roundabout in London. Magic roundabouts are also known as "Ring Junctions", while larger ones are sometimes known as "Gyratories".