This is at the World Culture Festival 2011 in Berlin in the Olympic Stadium.

There were 4 stages representing regions of the world that had various acts switching in and out, as well as a main performance in the middle of the stadium, which had acts from almost everywhere int eh world.

1st picture is of some 800 yoga performers from all over the place, it was very entertaining to watch.

2nd picture is a huge number of people who are about to do a Romanian dance while a group of 2000+ guitarists in the stands and on center stage played Amazing Grace

3rd picture is of Swedish Hornists

It was an amazing experience, except that it was pouring rain and absolutely freezing. We were all miserable and happy at the same time.