Serbia is home to the "Devil's Town," an eerie geological formation featuring naturally formed stone pyramids with mysterious stone caps.
Serbia is home to the world's largest trumpet festival, known as the Guča Trumpet Festival, where brass musicians from around the globe gather to compete and celebrate the instrument's unique charm.
Austria is home to the world's oldest zoo, the Tiergarten Schönbrunn, which was founded in 1752 and still operates today.