Thracian tomb in the Valley of the Thracian Rulers, Kazanak valley, Kazanlak, Bulgaria, Europe

photography colour colour image color color image horizontal horizontal image indoors inside day nobody no one no one travel travel destination travel destinations thracian tomb valley of the thracian rulers kazanak valley kazanlak bulgaria europe european building exterior building buildings building interior building interiors interior interiors architecture architectural history historical historic heritage entrance ancient culture tourist destination thracian architecture ancient civilization tomb mausoleum tradition traditional elevated view diminishing perspective vanishing point perspective the way forward doorway stone architectural detail antiquity thracian culture archaeological site unesco unesco world heritage site world heritage site