There are a number of cultural highlights listed here, of which this may be the dullest:
Luxembourg, the hopping procession of Echternach 500-year-old traditional Whit procession to the tomb of St Willibrord, joined by thousands of people hopping from foot to foot along the entire route, to the same traditional tune repeated for hours.
http://www.guardian.co.uk/culture/2010/nov/14/unesco-intangible-cultural-heritage-of-humanity
Regards
Steve Reszetniak
London