In which country is the Old City of Mostar, a world heritage site, located?

The Old City of Mostar is located in Bosnia and Herzegovina and is recognized as a UNESCO World Heritage site due to its cultural significance and unique architectural features. The city is renowned for its iconic bridge, Stari Most, which has become a symbol of reconciliation and connection between different communities after the devastating conflict in the 1990s. The intricate blend of Ottoman, Mediterranean, and Western architectural styles found in Mostar reflects the area's diverse cultural history. This historical urban landscape serves as a representation of the region’s past and its ongoing efforts towards peace and harmony.

The other countries listed are not home to this specific world heritage site, and while they each have their own cultural and historical landmarks, the Old City of Mostar uniquely exemplifies the rich history and cultural interactions specific to Bosnia and Herzegovina.