Registration for Social Events

Please sing up for the social events via ConfTool.

Riddle Rally City Tour

CityRiddler is offering a unique riddle rally to explore the city of Vienna. Get to know attendees from the colloquium, solve riddles, and explore the hidden gems of Vienna together. Do you know the Freemason headquarters in Vienna? Or the story of the street of blood? Can you solve the secret equation at the staff that lies in iron? In the CityRiddler rallye, you join a team with up to 6 people and explore the secret spots of the inner city of Vienna with your smartphone. For more information visit

Location: start at Karlsplatz, 1040 Wien

Time: Sunday, September 10, 2023, starting 15:00

Duration: approximately 2 hours

Cost: 5 EUR per person (booking and payment via ConfTool)

Welcome Reception

After participating in the city tour or arriving in Vienna, the Welcome Reception offers a wonderful opportunity to socialize over a cool drink and a light snack. 

Location: Kuppelsaal (4th floor), TU Wien main buidling, Karlsplatz 13, 1040 Wien

Time: Sunday, September 10, 2023, starting 19:00

Duration: approximately 1.5 hours

Cost: Included in the registration fee

Sparkling Moments on the Museum’s Roof

You will be offered an entertaining and informative insight into the Museum of Natural History (NHM) Vienna. You will take a look behind the scenes of the museum’s world-class collections and find out how and on what the staff at the NHM Vienna is carrying out research. The tour concludes with a glass of sparkling wine on the roof terrace overlooking Vienna city center. 

Location: Museum of Natural History (NHM Museum), Burgring 7, 1010 Wien

Time: Monday, September 11, 2023, starting 18:30

Duration: approximately 1 hour

Cost: 22 EUR per person (booking and payment via ConfTool)


Conference Dinner

The main social event of the conference, the conference dinner, will take place in the Rathauskeller, the restaurant located at the Vienna City Hall. A sustainable dinner will be served in this beautiful historical building located in the heart of Vienna. 

Location: Wiener Rathauskeller, Rathauspl. 1, 1010 Wien, Austria

Time: Wednesday, September 13, 2023, starting 18:30

Cost: Included in the registration fee