2-358-717 - Keystone Archives/Heritage Images

Suspended monorail, 1906. The world's first and oldest still operating, overhead monorail passenger transport system was built in Wuppertal, Germany. It was designed by the German engineer Eugen Langen (1833-1895), and was opened to the public on 1st March 1901. This picture appears to show a proposed monorail system in Strasbourg (Strassburg), part of Germany at the time.