history geography 304 mathematics 142 natural sciences 129 dictionaries 111 social geography 101 anthropology 98 more ... educational literature 85 law 85 electrotechnics 73 technology 72 textbooks 53 architecture 50 railway lines 32 chemistry 31 physics 31 science 31 mechanical engineering 29 topography 28 historický místopis 24 geometry 21 regional geography 21 osobnosti 19 metallurgy 17 arithmetic 16 geology 16 art 16 physical geography 15 towns 14 railway transport 14 less ...