If cooperation between town of Pirot in Serbia and municipality of Montana in Bulgaria was a person, he/she would celebrate their 30th birthday. Also, if he/she joined people in the park in the center of Montana, made off EU funds for cross-border cooperation, he/she would do street fitness. Find out more about this interesting story by Mirislov Manckov for TV Caribord from Dimitrovgrad, made during a visit to Bulgaria.