June 11th, 2018 • 11 mins 27 secs • Download (17.1 MB) • Link with Timestamp
The Bulgarian National Polytechnical Museum is a science museum that also tells the story of Bulgarian and world history.
June 11th, 2018 • 11 mins 27 secs • Download (17.1 MB) • Link with Timestamp
The Bulgarian National Polytechnical Museum is a science museum that also tells the story of Bulgarian and world history.