Getting around: A one-way extraordinary tram line 44 runs Friday from roughly 4 to 7 p.m., metro line A gets extra service after the concert, and several streets around Wenceslas Square and Old Town Square close to cars from noon to 4 p.m. Saturday for the parade. Drivers are advised to use P+R lots on the outskirts, since no parking is available near Letná. More full traffic restrictions here.