Arco floor lamp, 1962 Achille and Pier Giacomo Castiglioni Carrara marble base, stainless steel stem, steel reflector, 95 x 78 5/8 x 11 1/2" Manufactured by Flos The Museum of Modern Art Gift of the manufacturer Available from the MoMA Design Store   A street lamp was the springboard for Arco, a ceiling lamp that does not require holes in the ceiling. The light source is projected eight feet away from the base, leaving enough room to serve dinner and sit at the table. The lamp can be moved by two people by inserting a broomstick through the hole in the marble base.