https://joy.videvo.net/videvo_files/video/free/2019-02/large_watermarked/181015_Extra_Bulgaria_009_preview.mp4 Changing of the Guards in Sofia 01 Changing of the guards ceremony outside the presidency building in Sofia, Bulgaria. balkansbulgariabulgarianceremonychanginggovernmentguardguardslargopresidency buildingpresident's officepresidential palacesofiatraditionaluniformuniformed