Magic Roundabout (Hemel Hempstead) viaduct. The BP building was found to be unstable due to defective reinforced concrete and the exit had to be closed. The building was demolished but the original route was not restored, although a newer side exit from the roundabout replaced the junction with Marlowes off a side road. Magic Roundabout (Hemel Hempstead) The "Magic Roundabout" in Hemel Hempstead, Hertfordshire, England, is the familiar name given to the Plough roundabout. The familiar name comes from the children's television programme, and is also used for a similar junction in Swindon and the M40 junction in Denham. The official name relates to
The Magic Roundabout officially renamed. The Hemel Hempstead roundabout, with its large central roundabout surrounded by six smaller ones, is officially named the Plough Roundabout. In 1992, the Cardiff Bay Public Art Strategy selected Pierre Vivant to create artwork for a roundabout in Splott, a district of Cardiff. He created a series of geometrical sculptures featuring everyday road signs and, although its official name is "The Landmark", it is affectionately known by locals as the "Magic Roundabout". In 2006, the Go North East Bus Company branded one of their routes "The Magic Roundabout", the buses running on it all featuring the characters from