One of the world's oldest churches is crumbling deep in Iraq's desert, another victim of years of conflict, government negligence and climate change in a country with a rich heritage.

After Pope Francis made a historic visit to Iraq in March, many Iraqis hoped that busloads of tourists would flock to Al Aqiser church southwest of the capital Baghdad.

But in a country that has been battered by consecutive conflicts and economic crises, the church - like Iraq's numerous Christian, Islamic and Mesopotamian relics - has been left to weather away.

All that remains of Al Aqiser, which has stood in Ain Tamr for more than 1,500 years, are crumbling brick and red earthen walls.

Archaeologist Zahd Muhammad...
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