Riders and their horses will compete in a temporary arena, in front of the Rathausplatz and the splendid gothic town hall, as the circuit draws towards a conclusion.
So far this year, the GCT has proved a success for American riders. The previous leg in Lausanne was won by youngster Lucy Davis while the more experienced Laura Kraut still holds the overall lead heading to Austria.
Kraut, and her horse Cedric, will be keen to maintain - and possibly increase - that lead at the last European leg and ahead of the final showdown in Doha, Qatar.
Kraut will be buoyed by the presence of a strong US contingent in Vienna, consisting of Kirsten Coe, Saer Coulter, Kent Farrington, Reed Kessler, and Richard Spooner, the winner in Monte-Carlo.
Britain will also be strongly represented, with Scott Brash, Ben Maher, Michael Whitaker and Nick Skelton set to feature.
The French too, with Roger-Yves Bost, Patrice Delaveau, Kevin Staut and Pénélope Leprevost, will be contenders, while Germany's Ludger Beerbaum, the Portuguese Luciana Diniz and Alvaro de Miranda, currently sixth in the rankings, are also expected to shine.
As well as the show jumping, spectators in Vienna will have a chance to enjoy dressage with the Spanish riding school's demonstrations.
- Sports & Recreation
- Laura Kraut