You won't actually find the name `Nagykörút` on the map. It refers to the 4km-long ring road that runs in a sweeping semicircle through Pest, from Margaret Bridge to Petőfi Bridge. The Nagykörút consists of five segments: Szt. István körút, Teréz körút, Erzsébet körút, József körút and Ferenc körút (the last two are of less interest). While tourists shop on Váci utca, locals shop on this `Great Boulevard`, home to the busiest tram line in Europe, the 4/6.