Darmstadt is first single from the Ruoska album, Riisu.
In an interview, Patrik Mennander said the name Darmstadt (which is a city in Germany) and the chorus "Darmstadt - Road to heaven" originates from a dream former band guitarist Kai Ahvenranta had, in which he saw a sign saying "Darmstadt - Road to heaven", which inspired the song.
He later remembered seeing the name Darmstadt on the wheels of a vehicle being used while he was working in the timber industry.
[1]