Supporting documentation:
Open Air Theatre Bleacher Open Air Theatre Article Design Specification-Rev-002 Open Air Theatre Group Planning Layout
References:
http://www.chester.gov.uk/amphitheatre/excaarea.htm http://www.24hourmuseum.org.uk/nwh_gfx_en/ART42592.html http://penelope.uchicago.edu/Thayer/E/Roman/Texts/secondary/SMIGRA*/Amphitheatrum.html http://www.minack.com/ http://www.bwpics.co.uk/amphitheatre01.html http://www.pbs.org/wgbh/nova/colosseum/ http://www.mansionselect.com/coloredaluminumbleachers-outdoor-indoormetalbleacher.html http://www.artlex.com/ArtLex/r/roman.html http://emmm.co.uk/amphitheatre/aprog.html http://www.arenes-nimes.com/en/nimes/41-an_exceptional_amphitheatre/ http://www.the-colosseum.net/architecture/novavelarium.htm http://www.mainlesson.com/display.php?author=morris&book=roman&story=sports