- WeMaps.ru bolgariya/gorod-sofiya/national-…
- de.aroundus.com p/6088460-national-polytechnical-…National Polytechnical Museum. Museum Museum Museumsgebäude Museumsgebäude.
- commons.wikimedia.org wiki/Institution:National_…National Polytechnical Museum wikidata:Q6974996. National Polytechnical Museum.
- gems.travel article/europe/bulgaria/sofia/…Pravetz computers exhibition at the National Polytechnical Museum in Sofia, Bulgaria 19 May 2019. National Art Gallery, the Royal Palace in Sofia, Bulgaria.
- visit-plus.com node/3947Polytechnic Exhibition exhibits have become the main part of the museum collection. It currently is the largest technical museum in Russia.Bulunamadı: polytechnical, national
- ntm.cz enIt is a joint contribution of the National Technical Museum and the PETROF company to this year's Czech Music Year.Bulunamadı: polytechnical
- http://worldwalk.info en/catalog/24The State Polytechnical Museum (the Museum, for short) is the main Russian national museum of science and technology as well as the main Russian...
- web.archive.org web/20210217100416/https://www.…Earth and Man National Museum. ... Sofia Arsenal Museum for Contemporary Art.
- OpenTripMap.com en/card/W166216234The National Polytechnical Museum regularly participates in the annual Night of Museums.