This equestrian statue of emperor Marcus Aurelius is a replica of that one, which used to stand on Capitols Square (Piazza del Campidoglio) in Rome until 1979. The sculpture in Tulln commemorates that a Roman camp named Comagena was the predecessor of the modern city. [German]
The Horseshoe Tower (Hufeisenturm) in Tulln is a remain of an ancient Roman settlement named Comagena or Comagenis. Many parts of the tower are still from 4th century. The building is named after the shape of its groundplan which reminds of a horseshoe (Hufeisen).
On the ship Regentag lived and worked the artist Friedensreich Hundertwasser for several years. The name Regentag is identical to the second name of Hundertwasser, who called himself Friedensreich Regentag Dunkelbunt Hundertwasser. Since 2004, the ship anchored in the harbour of Tulln. [German]