Drensko Rebro is the site of two known mass graves from the end of the Second World War. They both contain the remains of Croatians that were disarmed and murdered in May 1945 along the road to Virštanj and at the crossroads between Drensko Rebro and Lesično. The House No. 8a Mass Grave (Slovene: Grobišče pri hiši 8a) is located 700 meters (2,300 ft) north of Pilštanj, between a roadside ditch and a slope.[3] The Sušica Creek Mass Grave (Grobišče ob potoku Sušica) is located in a meadow between Sušica Creek and the road to Pilštanj, between electric poles numbered 41 and 42.[4]
^Ferenc, Mitja (December 2009). "Grobišče pri hiši 8a". Geopedia (in Slovenian). Ljubljana: Služba za vojna grobišča, Ministrstvo za delo, družino in socialne zadeve. Retrieved October 28, 2023.
^Ferenc, Mitja (December 2009). "Grobišče ob potoku Sušica". Geopedia (in Slovenian). Ljubljana: Služba za vojna grobišča, Ministrstvo za delo, družino in socialne zadeve. Retrieved October 29, 2023.