"Sage Gateshead"
...I later found out that this was not a museum, but actually called "The Sage Gateshead", which cost about 80 million to build and is the home for live music of all sorts. Its architecture was pretty exciting and dramatic - the first building for the performing arts designed by Lord Foster's architectural team, Foster and Partners - one of this century's most admired architectural practices. http://www.thesagegateshead.org/