Some of the most iconic buildings in Karachi, Pakistan, are at risk as the mega-city's population booms around them.
Safeguarding old buildings, many considered landmarks and dating back to the colonial era, has not been a top priority for city planners.
Even so, a small and determined group of people is trying to save the city's architectural heritage
Al Jazeera's Imtiaz Tyab reports from Karachi.
Source: Al Jazeera