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Story, Derrick. Running Water. 2002. Photograph. Mac DevcenterWeb. 3 Sep 2012 <http://www.macdevcenter.com/mac/2002/11/14/graphics/image2 _running-water.JPG>.
Aqua Appia. N.d. Photograph. VITRUVIUS: De Architecture Book VIIIWeb. 3 Sep 2012. <http://www.robertabarresi.com/AquaAppia.jpg>.
Aqua Appia. 2010. Graphic. Unikassel VerstitatWeb. 3 Sep 2012. <http://www.unikassel.de/fb11/agrartechnik/Fachgebiet/Sande/Innovations-in-Irrigation/AquaApia.jpg>.
Awua Appia Aqueduct Workings. N.d. Chart. Republican Rome and the Republican ForumWeb. 3 Sep 2012 <http://www.mmdtkw.org/ AU0303eAqueduct.JPG>.
Inside the Aqueducts . 2012. Photograph. Webster's Online DictionaryWeb. 3 Sep 2012. <http://www.websters-online dictionary.org/images/wiki/ wikipedia/commons/thumb/8/84/Roman_aqueduct_from_Pools_of_Solomon_to_Jerusalem.jpg/ct_from_Pools_of_Solomon_to_Jerusalem.jpg>.
Gravitational Pull. 2010. Graphic. n.p. Web. 5 Sep 2012. <http://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Spacetime_curvature.png/250px-Spacetime_curvature.png>.
Heemskerck, Martin. Hanging Gardens of Babylon. 1500. Painting. n.p. Web. 8 Sep 2012. <http://upload.wikimedia.org/wikipedia/commons/thumb/a/ae/Hanging_Gardens_of_Babylon.jpg/350px-Hanging_Gardens_of_Babylon.jpg>.
Aqua Appia: Angle A. 2011. Photograph. Pic 2 FlyWeb. 8 Sep 2012. <http://www.p12.nysed.gov/ciai/socst/ghgonline/turnpoint/images/content/tp19/caesarea.jpg>.
G, Eric. Views of the Aqua Appia. 2007. Photograph. PicasaWeb. 8 Sep 2012. <https://lh5.googleusercontent.com/-1yC41eoWmUQ/RwlhAyJ8ynI/AAAAAAAAGGc/ul-OHIZmH4E/s800/DSCN4028.JPG>.