sentences:  Artists included in the collection are Pierre Huyghe, Sophie Calle and Jac Leirner.The foundation planned for a large Guggenheim museum on the waterfront in lower Manhattan, and it engaged Frank Gehry as the architect.His essentially complete designs for the building were showcased in 2001 at the Fifth Avenue museum, but these plans were disrupted by the economic downturn of the early 2000s and the September 11, 2001 attacks, which prompted reconsideration of any plans in lower Manhattan.