Mostar is the fourth or fifth largest city in the Herzegovina portion of Bosnia-Herzegovina. It’s actually the unofficial capital of Herzegovina. However, its greatest claim to fame is that the town was considered the “bridge keepers”, keeping the Stari Most (Old Bridge) over the Neretva River. The bridge was originally built in the 16th century, spanning the two sides of Mostar. It was destroyed during the war but, having been a UNESCO site, it was rebuilt, using the same materials – primarily limestone.