Aerial view, curved wall, administrative building of Alltours, a German travel business, Innenhafen inland harbour, Duisburg, Ruhrgebiet area, North Rhine-Westphalia, Germany, Europe

above administrative aerial aerial alltours angle area basin birds birds eye building business businesses companies company concern concerns corporate curved day daylight daytime domicile domiciles duisburg during economic economical economically economy elevated europe european exterior exteriors eye federal firm firms frg from german germany harbor harbour head headquarters high high angle hq hqs inland innenhafen location locations nobody north nrw of office offices operator operators outdoor perspective perspectives photo photograph photographs photos place places port ports republic rhine rhine westphalia rhine westphalian ruhr ruhrgebiet shot shots site sites the top topview topviews tour tourism touristic touristical touristically touristy travel view views wall westphalia westphalian