Seven years on, the war in Syria is still raging on. The US, the UK and France carried out a wave of strikes on the country this weekend in response to an alleged chemical weapons attack blamed on the government of President Bashar al-Assad. The before-and-after photos published by Aleppo's Olympia Restaurant reveal just how much the once-vibrant historical city has been marred by conflict. /Olympia Restaurant Photo

The Ancient City of Aleppo was categorized as a World Heritage Site by UNESCO in 1986. Once composed of large mansions, narrow alleys, covered souks and ancient caravanserais, the city has been reduced to ruins due to looting, burning, and destruction. /Olympia Restaurant Photo

The Middle Eastern country has been plagued by war since March 2011, becoming the world's single largest source of refugees and displaced people, according to UN figures. /Olympia Restaurant Photo

The Syrian Observatory for Human Rights, a British-based monitor group, said in March that about 511,000 people had been killed in the Syrian war since it began in 2011. /Olympia Restaurant Photo