travel germany route of industrial culture in the ruhr area

and architecture boat boiler building canal castroprauxel channel culture descent dortmund dortmundems dortmundemskanal economy ems europe german germany green henrichenburg heritage historic historical house industrial industry landmark landscape lift lock lwl machine machines monument museum nature office old outdoor park protection recklinghausen rhineherne route ruhr ruhrgebiet schiffshebewerk shaft ship shipping ships site structures tourism travel tree waltrop waterways westphalia