The Vienna World's Fair, officially known as the Exposition Universelle de Vienne, took place in 1873 in Vienna, Austria. It was organized to showcase the advancements in technology, culture, and industry of the time. The fair featured numerous pavilions and exhibitions from various countries, highlighting innovations in fields such as architecture, engineering, and the arts. One of the most notable structures built for the fair was the Vienna Riesenrad, a giant Ferris wheel that still stands today. The event attracted millions of visitors and played a significant role in promoting Vienna as a cultural and economic center in Europe during the late 19th century.