Anaglyphic stereograms (anaglyphs) are stereo pairs of images in which each image is shown using a different color. The two images are overlapped and then viewed using red/cyan or red/blue glasses (depending on the colors used)This means that the color channel is used for the stereo separation therefore the perception of anaglyphs is monochrome The word anaglyph comes from the Greek anagluphos, meaning "wrought in low relief"

3D Anaglyph photo of the Empire State Building New York, New York

The Empire State Building is cemented in New York history. Built during the Depression, the building was the center of a competition between Walter Chrysler and John Jakob Raskob to see who could build the tallest building. Construction began on 17 March 1930 the steel frame rose at an average rate of four and a half floors per week. To speed construction, the building's posts, beams, and window frames were made in factories and put together on the site. 60,000 tons of steel was brought in from the steel mills in Pennsylvania by train. In 1945 an Army Air Corps B-25 twin-engine bomber plane crashed into the 79th floor of the building in dense fog.

Since 1931 the building has acted as an "Ambassador to New York" to many famous people have visited such as, Fidel Castro, Queen Elizabeth, Prince Charles, Nikita Khrushchev & King of Siam

3D Anaglyph photo of Sacre-Coeur-Basilica Paris, France