"Flag" is a conceptual architectural project by Dutch architect Rem Koolhaas that reimagines the traditional flag as a three dimensional structure rather than a flat textile object. The work explores themes of national identity and symbolism through Koolhaas's characteristic deconstructive approach, challenging conventional representations of patriotic imagery. As with much of Koolhaas's theoretical output, the project functions as a critical commentary on contemporary culture and the materiality of everyday objects.