Watch HDToday. The renowned orchestra presents the world's biggest annual classical open air concert live from their hometown Vienna, Austria on Thursday, May 29th, 2014. The Summer Night Concert with the Vienna Philharmonic is an annual open-air event that takes place in the magical setting of the Schönbrunn Palace Park in Vienna with the palace as a magnificent backdrop. Everyone is invited to come to this unique occasion with free admission. Each year up to 100,000 people can take up the invitation, or enjoy on radio and TV in over 60 countries.