* Novi Sad is the second largest city in Serbia. It is a charming city located on the Danube River. Some of the most popular tourist attractions in Novi Sad include the Petrovaradin Fortress, the Serbian National Theatre, and the Liberty Square.
* Niš is the third largest city in Serbia. It is a historic city with a long and rich history. Some of the most popular tourist attractions in Niš include the Niš Fortress, the Skull Tower, and the Nisava River.
* Zlatibor is a popular mountain resort in Serbia. It is known for its beautiful scenery, fresh air, and mineral springs. Some of the most popular tourist attractions in Zlatibor include the Tornik Ski Resort, the Zlatibor Lake, and the Gostilje Waterfall.
* Vrnjačka Banja is a popular spa town in Serbia. It is known for its natural mineral springs and healing waters. Some of the most popular tourist attractions in Vrnjačka Banja include the Vrnjačka Banja Spa, the White Fortress, and the Lipovača Park.