Diary of a traveler from Vienna, Austria, with the surname Rehn to the United States in 1869. The author describes his travel to cities in the Middle Atlantic and Midwest regions--Washington, Philadelphia, New York, Pittsburgh, Cincinnati, Cleveland, and Chicago. He comments on the technology (factories, machines, railways, etc.) and architecture (bridges, buildings, social facilities, etc.) he sees. The diary contains a variety of sketches, including sketches of buildings, floor diagrams, bridges, etc. Also included are a travel diary for a trip to Italy in 1875; four engravings of Viennese buildings, 1856-1875; and two geological maps, 1866-1873. In German.