http://en.wikipedia.org/wiki/Poveglia#cite_note-archivio-0
http://maps.google.com/maps?f=q&hl=en&q=venice,+italy&ll=45.380419,12.332153&spn=0.004657,0.011051&t=k
http://www.mentalfloss.com/blogs/archives/55234
http://www.turismovenezia.it/leo/articolo.asp?lingua=eng&art=116