Clever! An International Museum of Buttons (Knopf & Knopf Museum) advertises on this manhole cover. Together with a brasserie and a hotel, it fills a former railway station building in Warthausen. The building is located directly on the Öchsle Railway, a heritage railway from Warthausen to Ochsenhausen. [German]
Sources / More info
- Knopf & Knopf Museum (Website)
- Öchsle Railway (Website)