The Hohenhain Tunnel, an important structure from the early 20th century, once closed the gap in the rail network between Freudenberg and Rothemühle. In October 1907, the 400-metre-long tunnel was opened after just over a year of construction, which significantly reduced the importance of the road running parallel to it. However, rail operations were discontinued in the 1980s and the tracks removed. It was not until 2004 that the tunnel experienced a renaissance when it became part of the Sieg-Bigge cycle path. Today, the tunnel is electrically illuminated during the day and offers cyclists a unique opportunity to explore the region on historic ground. The tunnel not only connects two places, but also the past and present by giving it a new function as a cycle path. This transformation makes the Hohenhain Tunnel an interesting destination for anyone interested in the history of the railroad and the scenic beauty of the Siegerland region.