How to make the most out of Halloween 2021 in Vienna Halloween - Die Auferstehung der Totgeglaubten. O - the club, Opernring/Operngasse, Vienna, Austria. Sun. 31st Oct. 10pm — 6am. 15,80€. Buy tickets. Recommended if you like: reliving the past, raising the dead, being undead, making out with a sexy zombie, getting dressed up, having the coolest costume in the club.