The Monument to the Unknown Soldier features an eternal flame, turf from Stara Zagora and Shipka Pass, sites of two of the most important battles of the Russo-Turkish War of Liberation (the Battle of Stara Zagora and the Battle of Shipka Pass), a sculpture of a lion (a national symbol of Bulgaria) by the noted sculptor Andrey Nikolov, as well as a stone inscription of a stanza (part of "The New Graveyard Above Slivnitsa" 1885 poem) by the national writer Ivan Vazov: