Hundreds of Thracian burial mounds are found throughout Bulgaria, including the Kazanlak and Sveshtari tombs, UNESCO World Heritage sites. Located near the ancient Thracian capital cities of Seuthopolis (of the Odrysian kingdom) and Daosdava or Helis (of the Getae), perhaps they represented royal burials. Other notable tombs are Thracian tomb of Aleksandrovo, Thracian tomb Golyama Arsenalka, Thracian tomb Shushmanets, Thracian tomb Griffins, Thracian tomb Helvetia, Tomb of Seuthes III, Thracian tomb Ostrusha, others contained offerings such as the Panagyurishte and Rogozen treasures.