Biking is becoming more popular since the construction of quality cycle tracks began in the 1990s. For tourism, there are the "Ilm track" and the "Thuringian city string track (Radweg Thüringer Städtekette)". Both connect points of tourist interest, the first along the Ilm valley from the Thuringian Forest to the Saale river and the second close to medieval Via Regia from Eisenach via Gotha, Erfurt, Weimar, and Jena to Altenburg. Additionally, there are themed routes like the Goethe cycle track and the Feininger cycle track. For inner city everyday traffic, some cycle lanes exist along several main streets. Bike rental is offered in the city centre.