And if Allah did not repel some men by means of others, there would surely have been pulled down cloisters and churches and synagogues and mosques, wherein the name of Allah is oft commemorated. And Allah will surely help one who helps Him. Allah is indeed Powerful, Mighty. (Al Quran 22:41)
Source: The Guardian
Ferhadija grand mosque, which was blown up by Bosnian Serb militiamen, to reopen after painstaking nine-year reconstruction
Other mosques and Islamic graves were destroyed on the same night on 7 May 1993. A total of about 60,000 Muslim and ethnic Croat residents were rounded up and deported from the municipality, imprisoned or killed.
Muhamed Hamidovic, former head of the Sarajevo architecture faculty, led the restoration effort after realising that the many sketches he had made of the mosque as a student in socialist Yugoslavia provided clues to how to rebuild it. It also helped that the mosque had been rebuilt before, after an earthquake in 1968, and diagrams and drawings were drawn up then.
Locals were interviewed to identify sites where the rubble had been hidden in 1993.