Aerial of the abandoned Sanatoirum in the mountains of Zagreb, Croatia

sanatorium abandoned hospital abandoned building psychiatric hospital chernobyl urbex abandoned dark tourism building hospital building old building exterior medical facility post apocalyptic overgrown decay aerial hospital property pine forest facility trees exterior forest landmark forgotten brestovac outskirts balkan real estate urban mountain side germany architecture suburban world war psychiatric croatia country side europe mountain tuberculosis tuberculosis research window frontal historical zagreb clinic outdoors mountains