http://bulgariancastles.com/bg/node/1047
https://ses.library.usyd.edu.au/bitstream/2123/15784/1/larnach_mj_thesis.pdf
http://bulgariancastles.com/bg/node/1047
https://ses.library.usyd.edu.au/bitstream/2123/15784/1/larnach_mj_thesis.pdf
Roman Bridge
Roman Castle
OmnesViae import TPPlace2010