Trnovo is the site of a mass grave from the period immediately after the Second World War. The Zalesnika Shaft Mass Grave (Slovene: Grobišče Brezno Zalesnika), also known as the Wild Apple Shaft Mass Grave (Grobišče Brezno za lesniko), is located 1.5 kilometers (0.93 mi) northeast of the village on the right side of the road to Lokve. It contains the remains of Home Guard and Italian prisoners of war and Slovene civilians murdered in May 1945.[3]
^Ferenc, Mitja (December 2009). "Grobišče Brezno Zalesnika". Geopedia (in Slovenian). Ljubljana: Služba za vojna grobišča, Ministrstvo za delo, družino in socialne zadeve. Retrieved October 20, 2023.
