She has photographed sacred and secular sites in over 20 countries, including Peru, Mexico, France, Britain, Egypt, Greece, Turkey, Australia, Namibia, Indonesia and India.

Closer to home Bridges photographed ancient and contemporary sites across the United States, from Pre-Columbian mounds in the Midwest and geoglyphs in California, to lava flows in Hawaii and glaciers in Alaska.

Bridges also received a grant from the French government to make aerial photographs of historical and contemporary sites in the Calais region to document the changing environment in connection with the Channel Tunnel, as seen in her 1995 book Vue d’Oiseau.

She received a similar grant from the Belgian government to document the landscape of Wallonia from the air, resulting in the 1999 book Vol au-dessus de la Wallonie.

[7] Bridges uses a medium format film camera, and takes photographs from a small airplane or helicopter with the door removed, usually from an altitude of 300 to 1000 feet.

– Grace Glueck, New York Times[9] "Her work combines an exquisite sense of composition and form with an appreciation of the cultural significance of the subjects she photographs."

– Jane Richards, The Independent (UK)[11] Marilyn Bridges, photographer, pilot and explorer, illuminates the bonds between the mark-makers of 3000 BC and the builders of our modern cities.

One could easily turn the etymology of photograph on its ear and call a Bridges aerial landscape an umbragraph, where darkness explains things – or at least exposes them – far more comprehensively than light does.