The Fastnacht is the biggest folk festival in Lahnstein – its traces can be traced back to the 16th century.
The Lahnstein Fastnacht Museum was established in 1996 by the oldest carnival association in Lahnstein, the Carneval Comité Oberlahnstein, or CCO (founded in 1934). Since then, many visitors have enjoyed the exhibits of one of the largest festivals in the Rhineland cultural landscape.
Hundreds of carnival badges tell their own stories. Of course, the classic jester attributes such as jester hats, scepters, uniforms, and other curiosities can also be admired.
Beyond the focus on Lahnstein's Fastnacht, objects from Koblenz, Mainz, and Cologne, as well as other Fastnacht communities, are also displayed. Historically interested visitors will also learn many background information.

Entry to the Fastnacht Museum is free. Since the museum is run purely by volunteers, donations are warmly welcomed. Group tours are available for a small fee.