The New Topographics - a 1975 exhibition called 'Man Altered Landscape' that started a radical shift away from which landscapes were taken - traditional depictions of romanticized landscapes to banal and stark industrial landscapes of mundane scenes, that never had a second glance. These images act like the acceptance of a world changing by man and they present the beauty and aesthetic of dull, ugly, rigid structures, scenes and streets. 
for example Robert Adams, Lewis Baltz, Bernd and Hilla Becher were part of The New Topographics group and were influential photographers in the practice of landscape photography around the world.
The new topographics signifies a reaction to the growing unease of the natural landscape being eroded by industrial development and the spread of cities.