You are viewing a single comment's thread from:RE: 7 World’s Continents Photo Challenge - European Thursday week #120View the full contextnenio (66)in #travel • 6 years ago (edited)Photo of Urania in Vienna. It is an Art Nouveau building of the beginning of the 20th century. It was built as a public observatory.. It is located in front of the Danube Canal, where you can see its reflection.