the one here shows the Latin Bridge in BiH's capital (also named the Princip Bridge during the Yugoslavian times).
It is a historic Ottoman bridge over the River Miljacka.
The northern end of the bridge was the site of the assassination of Archduke Franz Ferdinand of Austria by Gavrilo Princip in 1914, which became a casus belli of World War I. So a really important bridge you have here, being the silent witness of so many events over the years.
and on the brighter side, for all those nostalgic souls...here is an even more nostalgic song, where you have a reference about this famous river...and the young couples' memories, exchanging kisses and affection along its shores....*sigh*
For the rest, Crvena Jabuka (or Red Apple) is one of those very famous ex-yu bands, whose songs even nowadays people know by heart and like listening to :) However, this one here in particular is not really on my favourites' list...still, it ain't a bad one :)
as for the stamps...I often see this carrot one, issued in 2006 as a part of 5 vegetable stamps. The other one is a definitive from 2012, representing Old Cities, with this stamp showing the city of Tešanj. You know, when it comes to defintivies, usually your idea about them are some boring plain stamps...but this one is just fantastic I must say!