The event is held at the Austrian Academy of Sciences, in Vienna's 1st District (the old inner city).
Address: Österreichische Akademie der Wissenschaften (Austrian Academy of Sciences) Doktor-Ignaz-Seipel-Platz 2 1010, Vienna, AUSTRIA
Travelling to the Academy
The trip from the Vienna airport to the conference venue will take you approximately 45 minutes and costs €4,20. Just catch the S7 train ("Schnellbahn") to Landstraße / Wien Mitte and then it's less than a 10 minutes walk to the venue.
You can also grab the CAT ("City Airport Train") train to Landstrasse / Wien Mitte, which is heavily advertised and hard to miss but it's much more expensive (€11 or €17 return).
NOTE: You can download a map of the transportation in Vienna as a large PDF (1.8MB) to help plan your journey.
Here are a couple of hotels which are in walking distance to the conference venue. They (and hotels in general) are booking out fast for July, so don't wait too long.
Hotel Am Parkring, 4 Stars €95+ per night Parkring 12, 1010 Vienna
Mercure Grand Hotel Biedermeier, 4 Stars €85+ per night Landstrasser Hauptstraße 28, 1030 Vienna
Hotel Urania €69+ per night Obere Weißgerberstraße 7, 1030 Vienna
AllYouNeed Hotel Vienna 2 €53+ per night Große Schiffgasse 12, 1020 Vienna
Wombats City Hostel Vienna (Naschmarkt) €20 - 45 per night Rechte Wienzeile 35, 1040 Vienna