- it was built by Vasile Urseanu in 1910 with his own money
- it is a building having the shape of a nave
- in 1933 the building housed the first Picture Gallery of Bucharest Municipality
- the edifice has a 5m astronomic cupola installed in its highest place, with a Zeiss telescope, having 150mm in lens diameter
- the museum was organized in 1956 and it contains: astronomical instruments, a telescope, ancient sun dial, objects, panels with rare astronomical phenomena, manuscripts, books and the collection of documents belonging to Admiral Vasile Urseanu