OMA (Office for Metropolitan Architecture) is an international architecture firm founded in 1975 by Dutch architect Rem Koolhaas and Greek architect Elia Zenghelis. OMA is known for its innovative and experimental designs that often challenge traditional architectural conventions. The firm has completed numerous projects worldwide, including public buildings, private residences, cultural centers, and urban planning projects. OMA is recognized for its use of cutting-edge technology, interdisciplinary approach, and rigorous research methods.