Photography (pronounced /fәˈtɒɡrәfi/[1]) is the process, activity and art of creating still or moving pictures by recording radiation on a sensitive medium, such as a photographic film, or an electronic sensor. Light patterns reflected or emitted from objects activate a sensitive chemical or electronic sensor during a timed exposure, usually through a photographic lens in a device known as a camera that also stores the resulting information chemically or electronically. Photography has many uses for business, science, art and pleasure.

But do you ever thing a photo can be so expensive? Here they are

10. Andy Warhol (1987)
By: Robert Mapplethorpe
Price: $643,200 sold out on 2006

9. The Great Wave, Sete (1857)
By: Gustave Le Gray
Price:$838,000 sold out on 1999

8. [No.113] Athènes, Temple de Jupiter olympien pris de l'est (1842)
By: Joseph-Philibert Girault de Prangey
Price:$922,488 sold out on 2003.

7. Untitled (Cowboy) (1989)
By: Richard Prince
Price:$1,248,000 on New York, at Christie's Auction, November 2005.

6. Georgia O'Keeffe (Nude) (1919)
By: Alfred Stieglitz
Price:$1,360,000 sold out on 2006, New York

5. Georgia O'Keeffe (Hands) (1919)
By: Alfred Stieglitz
Price:$1,470,000 on New York

4. Nude (1925)
By: Edward Weston
Price:$1,609,000 sold out on 2008.

3. Kremlin of Tobolsk (2009)
By: Dmitry Medvedev
Price:$1,750,000 sold out on January 2010, Saint Petersburg

2. The Pond-Moonlight (1904)
By: Edward Steichen

1. 99 Cent II Diptychon (2001)
By: Andreas Gursky
Price: first print $2,250,000 on May 2006; second print $2,480,000 November 2006; third print $3,346,456 February 2007