As a finale to the Guggenheim’s 50th Anniversary celebrations, the museum auctioned works from the exhibition Contemplating the Void: Interventions in the Guggenheim Museum.

For this exhibition, the Guggenheim invited nearly two hundred artists, architects, and designers to imagine their dream interventions in the Frank Lloyd Wright–designed rotunda. The museum received a rich and diverse range of the proposals, and more than 90% of the works were donated to benefit the museum’s exhibition programming. Bidding opened on March 4 and continued through March 18 at charitybuzz.com/guggenheim.

Among the many works in the exhibition are projects by artists Alice Aycock, FAKE DESIGN (Ai Weiwei), Anish Kapoor, Sarah Morris, Mike Nelson, Paul Pfeiffer, Doris Salcedo, Lawrence Weiner, and Rachel Whiteread; designers such as Fernando and Humberto Campana, Martí Guixé, and Joris Laarman Studio; and architects such as Álvaro Siza Vieira Arquitecto, BIG (Bjarke Ingels Group), Greg Lynn FORM, junya.ishigami+associates, MVRDV, N55, Philippe Rahm, Snøhetta,Toyo Ito & Associates, Architects, and West 8.

Left: Alyson Shotz, Untitled, 2009 (detail). Laserjet print, 48.3 x 33 cm. Artwork © Alyson Shotz. Right: MAD Architects (Yansong Ma), State Fair Guggenheim, 2009 (detail). Digital print, 94.5 x 68.6 cm. Artwork © MAD Architects (Yansong Ma)