Hoover Dam takes shape from the concrete columns in which it was poured (shot from cableway control tower downstream on Nevada rim, so looking upstream 1934

Hoover Dam (formerly Boulder Dam) from Across the Colorado River 1941

hist_us_20_1929_crash_30s_depression_pic_pres_hoover_herbert_underwood, thirty First President of USA 1929-1933

Exterior view of the first McDonald's fast food restaurant with its neon arches illuminated at night, Des Plaines, Illinois. Circa 1955

Customers at a McDonals Resturant in 1950's

Soviet Union soldiers Raqymzhan Qoshqarbaev, and Georgij Bulatov raising the flag on the roof of Reichstag building in Berlin, Germany in May, 1945

Trans-Australia Railway workers' camp in 1913

The Sydney Opera House by Max Dupain in 1969

Probably the most famous image from the student uprising in China in 1989, this photograph shows a single person blocking the tanks that were emerging on the square

closing night of the International Exhibition in San Francisco in 1915

Busy streets Men and women stroll a row of jewelry shops on the Lower East Side (right) and stand in line for bread during the Great Depression (left)

Pillared hall with glass and mirror mosaic decorations, in the Jalnavas or Fountain Palace, City Palace, Udaipur 1882

Palace, Udaipur 1910

Palace (Rear view), [Udaipur] 1895

Building roads Workers lay bricks to pave 28th Street in Manhattan on October 2, 1930