In April 2007, a masssgrave was discovered in Guba during excavations.. During the research conducted by the Institute of Archeology and Ethnography of the Azerbaijan National Academy of Sciences, it was determined that the human bones found in the massgrave were civilians killed by the Armenian Dashnaks in 1918 and these people were killed with special cruelty and blunt instruments. Thus, the nails pierced into the skull found in the massgrave are preserved in the museum of the Complex as visual evidence of Armenian atrocities. In addition, weapons pertaining to 1918 are displayed in the museum.