The Lithuanian Museum of Ethnocosmology (Lithuanian: Lietuvos etnokosmologijos muziejus) is a sky observatory and ethnocosmology museum in Kulionys village located about 70 km (43 mi) north of Vilnius, Lithuania.

Since for the present embodiment of the ethnocosmological idea other spaces, premises and special buildings were required on a separate hill located several hundred meters from the main observatory, the so-called special astronomical pavilion (1989) was erected.

Decision of the Presidium of the Lithuanian Academy of Sciences on 15 March 1990 was founded Ethnocosmological Museum.

In the architecture of the complex of buildings of the museum the image of the cosmic, world tree is reflected.

Excursions begin with an inspection of the underground rooms, where the main exposition is located and ends at the viewing platform of the 45-meter-high tower, where you can see the large-scale installations on the museum territory, as well as the landscapes of the lake area.