Results 3 results found Rock formation at the 50 million year old Stone Forest (Pobiti Kamani), protected national monument, in Varna Province, Bulgaria, Europe Rock formation at the 50 million year old Stone Forest (Pobiti Kamani), protected national monument, in Varna Province, Bulgaria, Europe Rock formation at the 50 million year old Stone Forest (Pobiti Kamani), protected national monument, in Varna Province, Bulgaria, Europe