 Other flights are carried out via Frankfurt Airport, which can be reached in 3 hours, and in the future via Berlin Brandenburg Airport, which is scheduled to open in 2020 and is about 3 hours away.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)".